room air conditioner · 2 functions remote control off / on i operation off / on temp. room...

1 Features 2

2 Functions 3

3 Product Specifications 6

4 Dimensions 14

5 Refrigeration Cycle Diagram 16

6 Block Diagram 17

7 Wiring Diagram 18

8 Operation Details 19

9 Operating Instructions 29

10 Installation Instructions 34

© 2001 Matsushita Air-Conditioning Corp. Sdn. Bhd.(183914D). All rights reserved. Unauthorized copyingand distribution is a violation of law.

CS-C18BKP CU-C18BKP5CS-C18BKP CU-C18BKP6CS-C24BKP CU-C24BKP5CS-C24BKP CU-C24BKP6

11 3-way Valve 44

12 Servicing Information 57

13 Troubleshooting Guide 61

14 Technical Data 63

15 Exploded View 66

16 Replacement Parts List 67

17 Exploded View 69

18 Replacement Parts List 70

19 Electronic Circuit Diagram 73

Room Air Conditioner

CONTENTS Page Page

Order No. MAC0111061C0E25

• High Efficiency

• Compact Design

• Comfort Environment

− 8 hours of sleep mode operation

− Air filter with function to reduce dust and smoke

− Wider range of horizontal discharge air

− New Automatic air swing and manual adjusted byremote control for horizontal airflow.

• Auto Restart

− Random auto restart after power failure for safety restartoperation

• Removable and Washable Front Panel

• Remote Control Self-illuminating Button

• Catechin Air Purifying Filter

− Trap dust, tobacco smoke and tiny particles

− Prevent the growth of bacteria and viruses trapped

• Solar Refreshing Deodorizing Filter

− Remove unpleasant odour from the air

• Quality Improvement

− Gas leakage protection

− Prevent compressor reverse cycle

− External OLP to protect compressor (C18BKP6 only)other inner protector

− Noise prevention during soft dry operation

− Anti-dew Formation Control (Cooling & Soft Dry)

− Blue Coated Condenser (Gold Coated Condenser forPanama only)

− High resistance to corrosion.

• Operation Improvement

− Economy mode to reduce electrical power consumption

− Powerful mode to reach the desired room temperaturequickly

• Long Installation Piping

− Long piping up to 25 meter

• 24-hour Timer Setting

1 Features

2

CS-C18BKP CU-C18BKP5 / CS-C18BKP CU-C18BKP6 / CS-C24BKP CU-C24BKP5 / CS-C24BKP CU-C24BKP6

2 Functions

Remote Control

Operation OFF / ONOFF / ON I

Room Temperature SettingTEMP.

Operation Mode Selection

• AUTO Automatic Operation Mode• COOL Cooling Operation Mode• DRY Soft Dry Operation Mode• FAN Air Circulation Mode

MODE

TIME Time / Timer Setting

• Hours and minutes setting.

Clock Setting

• Current time setting.

Sleep Mode Operation OFF / ONSLEEP

Indoor Fan Speed SelectionFAN SPEED

• FAN Low Fan Speed• FAN Medium Fan Speed• FAN High Fan Speed• AUTO Automatic Fan Speed

FAN

Vertical Airflow Direction Control

• 24-hour, OFF / ON Real Timer Setting.

ON-TIMEROFF-TIMER

Timer Operation Selection

SETCANCEL Timer Operation Set / Cancel

• ON Timer and OFF Timer setting andcancellation.

CLOCK

AIR SWING

• Vertical Automatic AirflowDirection Control and ManualAirflow Direction Control (5stages of adjustment).

• Horizontal Automatic AirflowDirection Control and ManualAirflow Direction Control (5stages of adjustment).

Powerful Mode Operation OFF/ONPOWERFUL

Economy Mode Operation OFF/ONECONOMY

Cooling, Soft Dry, Air Circulation Operation.• Temperature Setting (16°C to 30°C)

Automatic Operation• Operation with 2°C higher than

standard temperature.• Operation with standard temperature.• Operation with 2°C lower than

standard temperature.

Self illuminatingbutton

3


Indoor Unit

Random Auto Restart Control

• Operation is restarted randomly afterpower failure at previous setting mode.

Anti-Freezing Control

• Anti-Freezing control for indoor heatexchanger. (Cooling and Soft Dry)

Sleep Mode Auto Control

• Indoor Fan operates at Low speed.• Operation stops after 8 hours.

Indoor Fan Speed Control

• High, Medium and Low.• Automatic Fan Speed Mode

– Cooling : Fan rotates at Hi, Me andSLo speed. Deodorizingcontrol is available.

– Soft Dry: Fan rotates at SLo speed.Deodorizing controlis available.

• Automatic air swing and manual adjustedby remote control for vertical andhorizontal airflow.

Airflow Direction Control

Automatic Operation Button

• Press for < 5s to operate Automaticoperation mode.(Used when the remote control cannot be used.)

• Press continuously for 5s or < 10s tooperate Test Run/Pump down. “Beep”sound will be heard at the 5th second.(Used when test running or servicing.)

• Press continuously for 10s and above toomit or resume the remote control signalreceiving sound. “Beep, beep” sound willbe heard at the 10th second.

AUTOOFF / ON

Operation Indication Lamps (LED)

• POWER (Green) ........ Lights up in operation,blinks in AutomaticOperation Modejudging.

• SLEEP (Orange) ........ Lights up in SleepMode Operation.

• TIMER (Orange) ....... Lights up in TimerSetting.

• POWERFUL (Orange) .. Lights up in PowerfulMode Operation.

• ECONOMY (Green) ..... Lights up in EconomyMode Operation.

Operation Mode

• Cooling, Soft Dry, Air Circulation andAutomatic Mode.

Powerful Operation

• Reaches the desired room temperaturequickly.

Time Delay Safety Control

• Restarting is inhibited for appro. 3 minutes.

Economy Operation

• To reduce electrical power consumption.

7 Minutes Time Save Control

• Cooling Operation only.

Anti-Dew Formation Control

• Anti-Dew Formation Control for indoorunit discharge area.

4


Outdoor Unit

• To protect compressor from reverserotation when there is a instantaneouspower failure.

60 Secs. Forced Operation Control

• Once the compressor is activated, itdoes not stop within the first 60 secs.However, it stops immediately withremote control stop signal.

Overload Protector

• Inner protector.

Compressor Reverse RotationProtection Control

Outdoor Fan Operation Control

• 6-pole induction motor (2 speed).• For Cooling or Soft Dry operation

Hi-speed ............. When outdoortemperature reaches to 31°C.Lo-speed ............. When outdoortemperature reaches to 29°C.

5


3 Product Specifications

Unit CS-C18BK CU-C18BKPower Source Phase, Voltage, Cycle (1)

(7)Single, 230 - 220, 50 Hz

(2) Single, 220, 60 Hz(3) Single, 240 - 230, 50 Hz(4) Single, 220, 50 Hz(5)(6)

Single, 230 - 208, 60 Hz

Cooling Capacity kW (BTU/h) (1)(3)(7)

5.30 - 5.30 (18,100 - 18,100)

(2)(4)

5.30 (18,100)

(5)(6)

5.20 - 5.20 (17,700 - 17,700)

Moisture Removal l/h (Pint/h) (1)(2)(3)(7)

2.9 (6.1)

(5)(6)

2.0 (4.2)

Airflow Method OUTLET

INTAKE

SIDE VIEW TOP VIEW

Air Volume Indoor Air (Lo) m3/min (cfm) (1)(3)(7)

12.8 (450) - 12.8 (450) —

(2)(4)

12.8 (450) —

(5)(6)

11.4 (400) - 11.4 (400) —

Indoor Air (Me) m3/min (cfm) (1)(3)(7)

13.8 (490) - 13.8 (490) —

(2)(4)

13.8 (490) —

(5)(6)

12.3 (430) - 12.3 (430) —

Indoor Air (Hi) m3/min (cfm) (1)(3)(7)

14.9 (530) - 14.9 (530) —

(2)(4)

14.9 (530) —

(5)(6)

13.3 (470) - 13.3 (470) —

Indoor Air (SHi) m3/min (cfm) (1)(3)(7)

15.5 (550) - 15.5 (550) —

(2)(4)

15.5 (550) —

(5)(6)

13.8 (490) - 13.8 (490) —

Noise Level dB (A) (1)(7)

High 42 - 42, Low 37 - 37 High 55 - 54

(2)(4)

High 42, Low 37 High 54

(3) High 42 - 42, Low 37 - 37 High 56 - 55(5)(6)

High 42 - 42, Low 37 - 37 High 56 - 54

6


Unit CS-C18BK CU-C18BKPower level dB (1) 54 - 54 70 - 70

(2)(4)(5)(6)(7)

— —

(3) 54 - 54 71 - 70Electrical Data Input Power kW (1)

(7)1.76 - 1.72

(2)(4)

1.72

(3) 1.81 - 1.78(5)(6)

1.78 - 1.74

Running Current A (1)(7)

7.8 - 8.0

(2)(4)

8.0

(5)(6)

7.9 - 8.5

EER W/W (BTU/hW) (1)(7)

3.01 - 3.08 (10.28 - 10.52)

(2)(4)

3.08 (10.52)

(3) 2.93 - 2.98 (10.00 - 10.17)(5)(6)

2.9 - 3.0 (9.9 - 10.1)

Starting Current A (1)(7)

38.0

(2)(5)(6)

47.0

(4) 36.0Piping Connection Port(Flare piping)

inchinch

G ; Half Union 1/2”L ; Half Union 1/4”

G ; 3-way valve 1/2”L ; 3-way valve 1/4”

Pipe Size(Flare piping)

inchinch

G ; (gas side) 1/2”L ; (liquid side) 1/4”


DrainHose

Inner diameter mm 12 —Length mm 650 —

Power Cord Length m 1.9 —Number of core-wire 3 (1.5 mm2) —

Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300)

Net Weight lb (kg) (1)(3)(4)(7)

24 (11.0) 121 (55.0)

(2)(5)(6)

24 (11.0) 106 (48.0)

Compressor Type — Rotary (1 cylinder)rolling piston type

Motor Type — Induction (2-poles)Rated Output kW (1)

(3)(4)(7)

— 1.5

(2)(5)(6)

— 1.2

7


Unit CS-C18BK CU-C18BKAir Circulation Type Cross-flow Fan Propeller Fan

Material ASHT-18 PC + AES + Glass Fiber 15%Motor Type Transistor (8-poles) Induction (6-poles)

Input W 44.8 - 53.5 151.2 - 135.7Rated Output W (1)

(3)(4)(7)

30 72

(2)(5)(6)

30 52

Fan Speed Low rpm (1)(3)(5)(6)(7)

1,130 - 1,130 —

(2)(4)

1,130 —

Medium rpm (1)(3)(5)(6)(7)

1,220 - 1,220 —

(2)(4)

1,220 —

High rpm (1)(3)(5)(6)(7)

1,320 - 1,320 1,020 - 980

(2)(4)

1,320 980

SuperHigh rpm (1)(3)(5)(6)(7)

1,370 - 1,370 —

(2)(4)

1,370 —

Heat Exchanger Description Evaporator CondenserTube material Copper CopperFin material Aluminium (Pre Coat) Aluminium (Blue/Gold Coat)Fin Type Slit Fin Corrugated FinRow / Stage (Plate fin configuration, forced draft)

2 × 15 2 × 31FPI 21 18Size (W × H × L) mm 810 × 315 × 25.4 775.2

754.5× 651.0 × 25.4

Refrigerant Control Device — Capillary TubeRefrigeration Oil (cm3) — SUNISO 4GDID or ATMOS

M60 (700)Refrigerant (R-22) g (oz) (1)

(3)(4)(7)

— 1,160 (40.9)

(2)(5)(6)

— 1,240 (43.8)

Thermostat Electronic Control Mechanical ControlProtection Device — Inner ProtectorCapillary Tube Length mm — 611

Flow Rate l/min — 27.0Inner Diameter mm — 2.1

Air Filter MaterialStyle

P.P.Honeycomb

—

Capacity Control Capillary TubeCompressor Capacitor µF, VAC — 45 µF, 370VACFan Motor Capacitor µF, VAC — 3.5 µF, 450VAC

8


Note:

• Specifications are subject to change without notice for further improvement.

• (1) — CS-C18BKP/CU-C18BKP5 (Europe).

• (2) — CS-C18BKP-1/CU-C18BKP6-1 (Panama).

• (3) — CS-C18BKP-2/CU-C18BKP5-2 (Oceania).

• (4) — CS-C18BKP-3/CU-C18BKP5-3 (Argentina).

• (5) — CS-C18BKP-4/CU-C18BKP6-4 (U.S.A).

• (6) — CS-C18BKP-5/CU-C18BKP6-5 (Canada).

• (7) — CS-C18BKP-6/CU-C18BKP5-6 (Turkey).

9


Unit CS-C24BK CU-C24BKPower Source Phase, Voltage, Cycle (1)

(7)Single, 230 - 220, 50 Hz

(2) Single, 220, 60 Hz(3) Single, 240 - 230, 50 Hz(4) Single, 220, 50 Hz(5)(6)

Single, 230 - 208, 60 Hz

Cooling Capacity kW (BTU/h) (1)(7)

7.03 - 7.03 (24,000 - 24,000)

(2)(4)

7.03 (24,000)

(3) 6.85 - 6.85 (23,400 - 23,400)(5)(6)

6.82 - 6.82 (23,200 - 23,200)

Moisture Removal l/h (Pint/h) (1)(4)(7)

4.0 (8.5)

(3) 3.9 (8.2)(5)(6)

3.1 (6.6)

Airflow Method OUTLET

INTAKE

SIDE VIEW TOP VIEW

Air Volume Indoor Air (Lo) m3/min (cfm) (1)(3)(7)

13.9 (490) - 13.9 (490) —

(2)(4)

13.9 (490) —

(5)(6)

12.4 (440) - 12.4 (440) —

Indoor Air (Me) m3/min (cfm) (1)(3)(7)

15.4 (540) - 15.4 (540) —

(2)(4)

15.4 (540) —

(5)(6)

13.8 (490) - 13.8 (490) —

Indoor Air (Hi) m3/min (cfm) (1)(3)(7)

16.9 (600) - 16.9 (600) —

(2)(4)

16.9 (600) —

(5)(6)

15.1 (530) - 15.1 (530) —

Indoor Air (SHi) m3/min (cfm) (1)(3)(7)

17.5 (620) - 17.5 (620) —

(2)(4)

17.5 (620) —

(5)(6)

15.6 (550) - 15.6 (550) —

Noise Level dB (A) (1)(7)

High 46 - 46, Low 40 - 40 High 60 - 59

(2)(4)

High 46, Low 40 High 59

(3) High 46 - 46, Low 40 - 40 High 61 - 60(5)(6)

High 46 - 46, Low 40 - 40 High 61 - 59

Power level dB (1) 59 - 59 74 - 74(2)(4)(5)(6)(7)

— —

(3) 59 - 59 75 - 74

10


Unit CS-C24BK CU-C24BKElectrical Data Input Power kW (1)

(7)2.60 - 2.41

(2) 2.55(3) 2.64 - 2.54(4) 2.41(5)(6)

2.68 - 2.64

Running Current A (1)(7)

12.4 - 11.8

(2) 12.0(4) 11.8(5)(6)

12.1 - 13.1

EER W/W (BTU/hW) (1)(7)

2.70 - 2.92 (9.23 - 9.96)

(2) 2.76 (9.41)(3) 2.60 - 2.70 (8.86 - 9.21)(4) 2.92 (9.96)(5)(6)

2.5 - 2.6 (8.6 - 8.7)

Starting Current A (1)(7)

65.0

(2)(4)(5)(6)

63.0

Piping Connection Port(Flare piping)

inchinch

G ; Half Union 5/8”L ; Half Union 1/4”

G ; 3-way valve 5/8”L ; 3-way valve 1/4”

Pipe Size(Flare piping)

inchinch



DrainHose

Inner diameter mm 12 —Length mm 650 —

Power Cord Length m 1.9 —Number of core-wire 3 (2.5 mm2) —

Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300)

Net Weight lb (kg) (1)(3)(4)(7)

24 (11.0) 132 (60.0)

(2)(5)(6)

24 (11.0) 133 (60.5)

Compressor Type — Rotary (1 cylinder) rollingpiston type

Motor Type — Induction (2-poles)Rated Output kW (1)

(4)(7)

— 2.2

(2)(5)(6)

— 1.8

11


Unit CS-C24BK CU-C24BKAir Circulation Type Cross-flow Fan Propeller Fan

Material ASHT-18 PC + AES + Glass Fiber 15%Motor Type Transistor (8-poles) Induction (6-poles)

Input W 44.8 - 53.5 190.0 - 171.3Rated Output W (1)

(3)(4)(7)

30 108

(2)(5)(6)

30 118

Fan Speed Low rpm (1)(3)(5)(6)(7)

1,220 - 1,220—

(2)(4)

1,220 —

Medium rpm (1)(3)(5)(6)(7)

1,350 - 1,350 —

(2)(4)

1,350 —

High rpm (1)(3)(5)(6)(7)

1,480 - 1,480 1,180 - 1,155

(2)(4)

1,480 1,155

SuperHigh rpm (1)(3)(5)(6)(7)

1,530 - 1,530 —

(2)(4)

1,530 —

Heat Exchanger Description Evaporator CondenserTube material Copper CopperFin material Aluminium (Pre Coat) Aluminium (Blue/Gold Coat)Fin Type Slit Fin Corrugated FinRow / Stage (Plate fin configuration, forced draft)

2 × 15 2 × 26FPI 21 18Size (W × H × L) mm 810 × 315 × 25.4 769.2

732.9× 660.4 × 44.0

Refrigerant Control Device — Capillary Tube

Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOSM60 (1,130)

Refrigerant (R-22) g (oz) (1)(3)(4)(5)(6)(7)

— 1,730 (61.1)

(2) — 1,700 (60.0)Thermostat Electronic Control Mechanical ControlProtection Device — Inner ProtectorCapillary Tube Length mm — 675

Flow Rate l/min — 25.5Inner Diameter mm — 2.1

Air Filter MaterialStyle

P.P.Honeycomb

—

Capacity Control Capillary TubeCompressor Capacitor µF, VAC — 45 µF, 370VACFan Motor Capacitor µF, VAC — 3.5 µF, 450VAC

12


Note:

• Specifications are subject to change without notice for further improvement.

• (1) — CS-C24BKP/CU-C24BKP5 (Europe).

• (2) — CS-C24BKP-1/CU-C24BKP6-1 (Panama).

• (3) — CS-C24BKP-2/CU-C24BKP5-2 (Oceania).

• (4) — CS-C24BKP-3/CU-C24BKP5-3 (Argentina).

• (5) — CS-C24BKP-4/CU-C24BKP6-4 (U.S.A).

• (6) — CS-C24BKP-5/CU-C24BKP6-5 (Canada).

• (7) — CS-C24BKP-6/CU-C24BKP5-6 (Turkey).

13


4 Dimensions

14


15


5 Refrigeration Cycle Diagram

16


6 Block Diagram

17


7 Wiring Diagram


18

Cooling in operation according to Remote Control setting.

Time Delay Safety Control (3 minutes)

7 minutes Time Save Control


• If the temperature of the indoor heat exchanger fallscontinuously below 2°C for 4 minutes or more, thecompressor turns off to protect the indoor heat exchangerfrom freezing. The fan speed setting remains the same.

• Compressor will restart again when the indoor heatexchanger temperature rises to 10°C (Recovery).

3 minutes waiting of Time Delay Safety Control is valid forCooling Operation.

Compressor Reverse Rotation Protection Control


8 Operation Details8.1. Cooling Mode Operation

• When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON.

• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.

• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressorON temperature and OFF temperature.

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air andindoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.(Time Delay Safety Control is valid)

T = Intake air temperature - Indoor heat exchanger temperatureThis is to protect reverse rotation of the compressor when there is a instantaneous power failure.

• Purpose is to prevent dew formation on indoor unit air discharge area.

• When the following conditions occur for 30 minutes continuously, anti-dew formation is controlled by indoor fan speed shift tolow (Changed to Lo+):

− Indoor intake air temperature is more than 24°C and less than 30°C.

− Remote Control setting temperature is less than 25°C.

− Compressor is on.

− Cooling operation mode.

− Indoor Fan motor operate at Low fan speed.

• This control is cancelled immediately when above condition is changed.

19


Automatic Fan Speed Mode

Cooling Operation Time Diagram

When Automatic Fan Speed is selected at Remote Control during cooling operation.

• Fan speed rotates in the range of Hi to Me.

• Deodorizing Control.

20


Time Delay Safety Control


Compressor Reverse Rotation Protection Control


Automatic Fan Speed Mode

8.2. Soft Dry Mode Operation

• The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, andthen Soft Dry operation will start.

• During Soft Dry operation, the Indoor Fan will operate at SLo speed.

• Once room temperature reaches below Soft Dry OFF temperature. Indoor Fan, Compressor and Outdoor Fan stop for 6minutes.

• Once the compressor stops, it will not start for 3 minutes during Cooling operation.

• Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressorstops.)

• Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waitingis valid during compressor stops.)

• Same as Anti-Dew Formation Control for Cooling Mode operation.

When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.

• Fan speed off and on at SLo speed.

• Deodorizing Control.

21


Soft Dry Operation Time Diagram

22


Air Circulation Mode Operation Time Diagram

Standard for Determining Operation Mode

8.3. Air Circulation Mode Operation • When the temperature near the ceiling reaches the setting temperature, Air Circulation Mode operation commences at low

airflow volume. It stops when the temperature drops to 2°C below the setting temperature.

8.4. Automatic Mode Operation

• Indoor fan operates at SLo fan speed for 20 seconds.

• After judging indoor air temperature, the operation mode is determined and operation continued at the mode determined.

• After the operation mode has been determined, the mode does not change. However, Soft Dry mode operation includesCooling mode operation.

• Room temperature adjustment.

The following are added to the setting temperature specified as above.

• The mode judging temperature and standard setting temperature can be increased by 2°C, by open the circuit of JX1 at indoorelectronic controller.

23


Cooling or Soft Dry Operation

Purpose is to obtain a comfortable room temperature whilesleeping. When you press the SLEEP Mode, the followingmovement will start to avoid overcooling.

• Sleep shift operation starts, when the room temperaturereaches the setting temperature or after 1 hour of operation.

• The setting temperature will be risen by 0.5°C at the start ofoperation and by 0.5°C one hour later.

• The airflow volume will automatically change to Low fanspeed.

• Sleep Mode operation time is 8 hours, the operation will bestop after 8 hours.

• When used together with the Timer, the Timer has priority.

8.5. Sleep Mode Auto Operation

8.6. Powerful Mode Operation • Purpose of this operation is to obtain the setting temperature quickly.

• When the Powerful Mode is set, the set temperature will be automatically decreased 3°C against the present settingtemperature (Lower temperature: 16°C).

• This operation automatically will be running under SHi Fan Speed (Cooling), SLo Fan Speed (Soft Dry).

• Vertical Airflow Direction:-

- In “Manual” setting, the vane will automatically swing down 10° lower than previous setting.

- In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10° downward.

• Powerful Mode will operate for 15 minutes only, after that it will shift back to previous operation mode.

• Powerful Mode will stop if:-

- Powerful mode button is pressed again.

- Stopped by ON / OFF switch.

- Timer OFF activates.

- Economy mode button is pressed.

- Sleep mode is pressed.

- Operation mode button is changed.

8.7. Economy Mode Operation • Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner.

• When the Economy Mode is set, the set temperature will be automatically increased 0.5°C against the preset settingtemperature (Higher temperature: 30°C).

• This operation automatically will be running under SLo Fan Speed.

• Vertical Airflow Direction:-

In “Manual” or “Auto” setting, the vane will automatically change to Auto Air Swing.

• Economy Mode will stop if:-

- Economy Mode button is pressed again.

- Stopped by ON / OFF switch.

- Timer OFF activates.

- Powerful mode button is pressed.

- Auto or Manual air swing button is pressed.

- Fan Speed control button is pressed.

- Sleep Mode button is pressed ON.

- Operation Mode is changed.

24


8.8. Random Auto Restart Control

• If there is a power failure, operation will be automatically restarted after 3 to 5 1/2 minutes when the power is resumed.

It will start with previous operation mode and airflow direction.

• Restart time is decided randomly using 4 parameter:-

Intake air temperature, setting temperature, fan speed and Air Swing Blade position.

• Auto Restart Control is not available when Timer or Sleep Mode is set.

• This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)

8.9. Indoor Fan Speed Control

• Auto Fan Speed Control

When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table.

• Manual Fan Speed Control

Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button at the remotecontrol.

25


Vertical Airflow Direction Auto-Control

• When set a Airflow Direction Auto-Control with remotecontrol, the louver swings up and down as shown in thediagram.

• The louver does not swing when the Indoor Fan Motorstops during operation at the upper limit.

• When stopped with remote control, the discharge vent isreset, and stopped at the closing position.

• During Anti-dew condensation prevention, Airflow DirectionAuto-control angle change from 0° - 36° to 12° - 28° underCooling and Soft Dry operation mode.

Vertical Airflow Direction manual Control

• When the manual Airflow Direction Selection Button ispressed, the automatic airflow is released and the airflowdirection louver move up and down in the range shown inthe diagram.

The louver can be adjusted by pressing the button to thedesired louver position.

• When the remote control is used to stop the operation, thedischarge vent is reset, and stopped at the closing position.

• During Anti-dew condensation prevention, Airflow DirectionManual control angle change from 14°, 19°, 24°, 30°, 36° to16°, 18°, 20°, 22°, 24° under Cooling and Soft Dry operationmode.

Horizontal Airflow Direction Auto-Control

• When set a Airflow Direction Auto-Control with remotecontrol, the vanes swings left and right as shown in thediagram.

• The vanes does not swing when the Indoor Fan Motor stopsduring operation at 22° angle.

• When stopped with remote control, the discharge vent isreset, and stopped at the reset position.

• During Anti-dew condensation prevention, Airflow DirectionAuto-control angle change from 0° - 44° to 14° - 30° underCooling and Soft Dry operation mode.

8.10. Airflow Direction Control

1. There is no swinging while indoor fan motor is stopped during Cooling and Soft Dry operation.2. In Air Circulation operation, when the intake air temperature reaches set temperature, the airflow direction is changed from upper limit to

lower limit. When the intake air temperature falls to 2°C lower than set temperature, the airflow direction is changed from lower limit toupper limit.

1. There is no swinging while indoor fan motor is stopped during Cooling and Soft Dry operation.2. In Air Circulation operation, when the intake air temperature reaches set temperature, the airflow direction is Auto Swing left and right.

When the intake air temperature falls to 2°C lower than set temperature, the airflow direction is stop at 22° angle.

26


Horizontal Airflow Direction manual Control

• When the manual Airflow Direction Selection Button ispressed, the automatic airflow is released and the airflowdirection vane move left and right in the range shown in thediagram.

The louver can be adjusted by pressing the button to thedesired vane position.

• When the remote control is used to stop the operation, thevanes is reset, and stopped at reset position.

• During Anti-dew condensation prevention, Airflow DirectionManual control angle change from 0°, 11°, 22°, 33°, 44° to14°, 18°, 22°, 26°, 30° under Cooling and Soft Dry operationmode.

8.11. Delay ON Timer Control • When the Delayed ON Timer is set by using the remote control, the unit will start operate slightly before the set time, so that

the room will reach nearly to the set temperature by the desired time.

• For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time.

• For Automatic mode, the indoor fan will operate at SLo speed for 20 seconds, 15 minutes before the set time to detect theintake air temperature to determine the operation mode. The operation indication lamp will blink at this time.

8.12. Remote Control Signal Receiving Sound • Long beep sound will be heard when:-

− Stopping the Air Conditioner using ON/OFF switch.

− Stopping the Sleep Mode.

− Stopping the Powerful Mode.

− Stopping the Economy Mode.

• Short beep sound will be heard for others.

• To switch off the beep sound:-

Press the “Automatic Operation Button” continuously for 10 seconds or more (“beep” “beep” will be heard at the 10th second).

Repeat the above if you want to switch ON the beep sound.

However, if the “Automatic Operation Button” has been pressed the Automatic operation will be activated.If you do not require this operation, you may change it by using the remote control.

27


8.13. Soft starter (Applicable only for C24BK Australia market)

A. Purpose

To reduce starting current lower than 45A.

B. Basic Operation

1. When indoor relay is turn ON, starting capacitor will be turn ON through RY-C for ~ 1 second. After that reactor will be turnOFF through RY-L and in the same time RY-C will turn OFF causes starting capacitor to be OFF.

2. When the unit operation ON by remote controller or thermostat OFF → ON the starter kit will be functioned.

3. When the unit operation OFF → ON by the inner protector, the starter kit will be not function, mean the unit will be ON asa normal operation.

28


9 Operating Instructions

SAFETY PRECAUTIONS

Before operating, please read the following“Safety Precautions” carefully.

To prevent personal injury, injury to others andproperty damage, the following instructions must befollowed.

Incorrect operation due to failure to follow instructionswill cause harm or damage, the seriousness of whichis classified as follow:

! WarningThis sign warns of death or serious injury.

! CautionThis sign warns of damage to property.

The instructions to be followed are classified by thefollowing symbols:

This symbol (with a white background) denotes anaction that is PROHIBITED.

These symbols (with a black background) denoteactions that are COMPULSORY.

OFF

Installation Precautions

! Warning

This room air conditioner must beearthed.Improper grounding could causeelectric shock.

Ensure that the drainage piping isconnected properly.Otherwise, water will leak out.

Do not install the unit in apotentially explosive atmosphere.Gas leak near the unit could causefire.

Do not install, remove and reinstall the unit byyourself.Improper installation will cause leakage, electricshock or fire. Please engage an authorized dealeror specialist for the installation work.

! Caution

Operation Precautions

! WarningThis sign warns of death or serious injury.

Do not share outlet. Do not insert plug to operate the unit. Do not

pull out plug to stop the unit. Do not operate with wet hands. Do not damage or modify the power cord. Do not insert finger or other objects into the

indoor or outdoor units. Do not expose directly to cold air for a long

period.

Plug in properly. Use specified power cord.

If abnormal condition (burnt smell, etc.)occurs, switch off and unplug the powersupply.

! CautionThis sign warns of injury.

Do not pull the cord to disconnect the plug. Do not wash the unit with water. Do not use for other purposes such as

preservation. Do not use any combustible equipment at

airflow direction. Do not sit or place anything on the outdoor

unit.

Switch off the power supply before cleaning. Ventilate the room regularly. Pay attention as to whether the installation

rack is damaged after long period of usage.

Switch off the power supply if the unit is notused for a long period.

OFF

OFF

NAME OF EACH PART

Indoor Unit

1 Front Panel

2 Air Intake Vent

3 Power Supply Cord

4 Air Outlet Vent

5 Vertical Airflow Direction Louver

6 Horizontal Airflow Direction Louver

7 Indicator Panel

1 Auto Operation Button(when the front panel is opened)

2 Economy Mode Indicator – GREEN

3 Powerful Mode Indicator – ORANGE

4 Power Indicator – GREEN

5 Sleep Mode Indicator – ORANGE

6 Timer Mode Indicator – ORANGE

Indoor Unit(when the front panel is opened)

1 Front Panel

2 Air Filters

3 Air Purifying Filter

Outdoor Unit

1 Air Intake Vents

2 Ground Terminal(Inside cover)

3 Piping

4 Connecting Cable

5 Drain Hose

6 Air Outlet Vents

1 2

3

457 6

2

1 3

1

6

2

5

3

4

POWERFULPOWERFULECONOMYECONOMY POWERPOWER TIMERTIMERSLEEPSLEEPPOWERFULPOWERFULECONOMYECONOMY POWERPOWER TIMERTIMERSLEEPSLEEP

1 2 3 654

Accessories Remote Control

Remote Control Indication Sticker(Europe & Argentina only)

Remote Control Holder

Two RO3 (AAA) dry-cell batteries or equivalent

Air Purifying Filter

CHECK

TEMP

AUTAUTO

ONOFF

AUTAUTO

DRDRYFANAN

COOLCOOL

FANAN

AUTAUTO

RESET

BATTERY

CLOCK

MODE

SLEEP

ECONOMY

FAN SPEED

AIR SWING

OFF

CANCEL

ON

SET

Step 1

2

3TIMER

+

POWERFUL

OFF/ON

AUTAUTO

HEAHEAT

(Catechin AirPurifying Filter)

(Solar RefreshingDeodorizing Filter)

29


NAME OF EACH PART

Remote Control

Remote Control Signal.• Make sure it is not obstructed.• Maximum distance : 10 m.• Signal received sound.

One short beep or one long beep.

Notes for Remote Control.• Do not throw or drop.• Do not get it wet.• Certain type of fluorescent lamps may affect

signal reception. Consult your dealer.

CHECK

TEMP

AUTO

ON

OFF

AUTAUTOHEAHEAT DRDRYFANANCOOLCOOL

FAN

AUTO

RESET CLOCK

MODE SLEEPECONOMY

FAN SPEED

AIR SWING

OFF CANCEL

ON SET1 2 3

TIMER

OFF/ONPOWERFUL

#

!

$

%

^

$

*

&

3

5

8

7

9

0

6

4

(

AUTO

2

1

How to Insert the Batteries

1 Slide down the remote control cover completely

2 Insert the batteries– Be sure the direction is correct– 12.00 at display - flashing• Set the current time (CLOCK) immediately to

prevent battery exhaustion.

About the batteries• Can be used for approximately one year.

Observe the following when replacing thebatteries• Replace with new batteries of the same type.• Do not use rechargeable batteries (Ni-Cd).• Remove the batteries if the unit is not going to be

used for a long period.

1 Signal Transmitter

2 Operation Display

3 Powerful Mode Operation Button

4 Room Temperature Setting Button(self-illuminating button)

5 Operation Mode Selection Button

6 Economy Mode Operation Button

7 Vertical Airflow Direction Button

8 ON-Timer Button

9 OFF-Timer Button

0 Reset Point(Press with fine-tipped object to clear the memory)

! OFF/ON Button(self-illuminating button)

@ Sleep Mode Operation Button

# Fan Speed Selection Button

$ Horizontal Airflow Direction Button

% Timer Set Button

^ Timer Cancellation Button

& Time-Setting Button

* Clock Button

( Remote Control Cover

CHECK

TAUTO

ONOFF

AUTOHEAT

DRYFAN

COOL

FAN

AUTOAUTO

RESETCLOCK

AIR SWING

OFF

CANCEL

1

2

3TIMER

POWERFUL

AUTOMANUAL

ECONOMYSLEEP

ON

SET

FAN SPEED

MODE

2

1

1.5V1.5V

PREPARATION BEFORE OPERATION

Indoor Unit

1 Connect the power supply cord to an independentpower supply

2 Open the front panel

3 Remove the air filters

4 Fit the air purifying filters in place

5 Insert the air filters

6 Close the front panel

Remote Control– To set the current time

1 Press 1.

2 Then press 2 to increase or decrease the time.

3 Press 1 again.Set time at display will light up.

RESET CLOCK

FAN SPEED

AIR SWING

OFF CANCEL

ON SET1 2 3

TIMER

1

2

6

2 1

453

Setting Temperature• Press 3 to increase or decrease the temperature.• The temperature can be set between 16°C ~ 30°C.• Recommended temperature:

• During AUTO Operation, press 3 to select:-

• Operation with 2°C higher than the standardtemperature.

• Operation with the standard temperature.

• Operation with 2°C lower than the standardtemperature.

Standard Temperature

Cooling Model

• Once the Automatic Operation is selected, the indoortemperature sensor operates automatically to selectthe desired operation mode with Cooling or Soft Dry.

• After the operation mode has been selected, themode does not change.

Heat Pump Model

• At the beginning of the automatic operation, Heating,Cooling or Soft Dry is automatically selected accordingto the indoor temperature.

• The operation mode changes every hour, whennecessary.

Operation

Cooling

Soft Dry

Standardtemperature

25°C

22°C

Indoortemperature

23°C

HOW TO OPERATE

To start the operation• Press 1.• POWER indicator (green) on the indoor unit will light

up.• To stop, press once more.

Setting Mode• Press 2 to select:-

Cooling Model

AUTO – Automatic OperationCOOL – Cooling OperationDRY – Soft Dry OperationFAN – Air Circulation Operation

Heat Pump Model

AUTO – Automatic OperationHEAT – Heating OperationCOOL – Cooling OperationDRY – Soft Dry Operation Operation

Cooling

Soft Dry

Heating

Standardtemperature

25°C

22°C

21°C

Indoortemperature

23°C

20°C

Heat Pump Model

COOL – 26°C ~ 28°CDRY – 1°C ~ 2°C

lower than theroom temperature

HEAT – 20°C ~ 24°C

Cooling Model

COOL – 26°C ~ 28°CDRY – 1°C ~ 2°C

lower than theroom temperature

OFF

ON

HEAHEAT

DRDRYFANAN

COOLCOOL

TEMP

AUTAUTO

AUTAUTOFANAN

AUTAUTO

AIR SWING1

2

OFF/ON

POWERFUL

ECONOMYSLEEP

ON

FAN SPEED

MODE

AUTAUTO

2

35

164

30


Operation Details

COOL – Cooling Operation• To set the room temperature at your preference

cooling comfort.

AUTO – Automatic Operation• Sense indoor temperature to select the optimum

mode.• Temperature is not displayed on the remote control

during AUTO operation.

DRY – Soft Dry Operation• A very gentle Cooling Operation, prior to

dehumidification. It does not lower the roomtemperature.

• During Soft Dry operation, the indoor fan operates atLow fan speed.

HEAT – Heating Operation(for Heat Pump Model only)• Heat is obtained from outdoor air to warm up the

room. When the outdoor ambient air temperaturefalls, the heating capacity of the unit might bereduced.

• Defrosting OperationDepend on the outdoor temperature, the operationoccasionally stops to melt the frost on the outdoorunit.

FAN – Air Circulation Operation(for Cooling Model only)• When the room temperature reaches the set

temperature, operation commences at Low airflowvolume. It stops when the room temperature drops to2°C below the set temperature.(It is useful when using a heater).

Setting the Fan Speed• Press 4 to select:-

FAN – Low Fan SpeedFAN – Medium Fan SpeedFAN – High Fan SpeedAUTOFAN – Automatic Fan Speed

The speed of the indoor fan is adjustedautomatically according to the operation.The indoor fan stops occasionally duringcooling operation.

Setting the Vertical Airflow Direction.• Press 5 to select:-

Use this air conditioner under the followingconditions:

Notes• If the unit is not going to be used for an extended

period of time, turn off the main power supply. If it isleft at the ON position, approximately 2.5 W ofelectricity will be used even if the indoor unit has beenturned off with the remote control.

• If operation is stopped, then restart immediately, theunit will resume operation only after 3 minutes.

Heat Pump Model

DBT: Dry Bulb TempWBT: Wet Bulb Temp

Maximum Temperature

Minimum Temperature

WBT

23

11

DBT

43

16

WBT

26

11

Indoor Outdoor

(Unit in °C)

DBT

32

16

DBT: Dry Bulb TempWBT: Wet Bulb Temp

Maximum Temperature-Cooling(Maximum Temperature-Heating)

Minimum Temperature-Cooling(Minimum Temperature-Heating)

DBT

32(30)

16(16)

WBT

23(-)

11(-)

DBT

43(24)

16(-5)

WBT

26(18)

11(-6)

Indoor Outdoor

(Unit in °C)

Cooling Model

AUTO

• For COOL/DRY operation.Swing up/down automatically.

• For HEAT operation(For Heat Pump Model only)When the discharge air temperature islow such as at the start of the heatingoperation, the air blows at horizontallevel. As the temperature rises, the hotair blows in a downwards direction.

AUTO

AUTO

Setting the Horizontal Airflow Direction.• Press 6 to select:-

AUTO

HorizontalAirflowDirection

IndoorUnit

RemoteControl

• For COOL/DRY operation.Swing left/right automatically.

• For HEAT operation(For Heat Pump Model only)There is no air swing during the dischargeair temperature is low. When thetemperature rises, the horizontal airflowlouvers swing left/right automatically.

AUTO

AUTO

SETTING THE TIMEREnsure that the current time is correct before setting thetimer. The timer cannot be set if the time display isflashing.

ON-TIMER OperationTo start the air conditioner operation automatically.• Press 1 to set the operation.• Press 2 to increase or decrease the time.• Then press 3.• To cancel this operation, press 4.

OFF-TIMER OperationTo stop the air conditioner operation automatically.• Press 5 to set the operation.• Press 2 to increase or decrease the time.• Then press 3.• To cancel this operation, press 4.

Timer Mode Operation Details• When the ON-Timer is set, operation will start

before the actual set time. This is to enable theroom temperature reaches the set temperature atthe set time.

• Once the ON-Timer is set, operation will start at theset time everyday.

• The current time is not displayed when the timersare set.

• When both timers are used together, the TIMERmode indicator on the indoor unit remains lit evenwhen the operation is stopped by the OFF-TIMER.

CONVENIENCE OPERATION Sleep Mode Operation

To obtain a comfortable room temperature whilesleeping:-• Press 6.• Sleep mode indicator on the indoor unit will light up.• To cancel this operation, press once more.

Sleep Mode Operation Details• When the room temperature reaches the set

temperature, the airflow volume will change to lowautomatically.

• Sleep Mode Operation time is 8 hours.• When used together with the timer, the timer has a

priority.

Cooling Model

Economy Mode OperationTo save electrical power consumption.Please use this mode when the room has reachedyour desired temperature.• Press 7.* Economy mode indicator (green) on the indoor unit

will light up.• Press once more to cancel this operation.

Powerful Mode OperationTo obtain the set temperature quickly.• Press 8.* Powerful mode indicator (orange) on the indoor

unit will light up.* Powerful mode will operate for 15 minutes only.• To cancel this operation, press once more.

Economy / Powerful Mode Operation Details• Economy and Powerful operation cannot be

selected simultaneously.• The changes of the temperature and airflow volume

are automatic.• The remote control display remains unchanged.• If sleep button or operation mode button is pressed,

economy or powerful operation will be cancelled.• During FAN – Air circulation operation, the powerful

and economy operation are not available.(cooling model only)

Time

Approx. 0.5°Cincrease.

Temperature

SleepOperationbutton ispressed.

Sleep shiftoperationstarts.

0~1 hour

after approx. 8 hours of sleep shiftoperation, it will stop automatically.

Approx.0.5°Cincrease.

• Cooling or Soft DryOperation for sleep shiftoperation will start toavoid overcooling.

Setting

Temperature

MODE SLEEPECONOMY

FAN SPEED

AIR SWING

OFF CANCEL

ON SET1 2 3

TIMER

OFF/ONPOWERFUL

3

6

4

1

7

5

2

8

← 1 hour →

Heat Pump Model

Sleep shiftoperation starts.

Approx. 3°Cdecrease.

• Cooling or Soft DryOperation for sleep shiftoperation will start toavoid overcooling.

• Heating operation forsleep shift operation willstart to avoid overheating.Sleep

Operationbutton ispressed.

0~1 hour

Approx. 2°Cdecrease.

Approx.0.5°Cincrease.

Approx. 0.5°Cincrease.

Temperature

Setting

Temperature

Time

← 1 hour →

after approx. 8 hours of sleep shiftoperation, it will stop automatically.

Airflowvolume

Super Low

Automatic

Economy ModeOperation

COOL / DRY

HEAT(for Heat Pump

model only)

Temperature

0.5°C higherthan set temp.

0.5°C lowerthan set temp.

Airflowvolume

Super High

Automatic

Powerful ModeOperation

COOL / DRY

HEAT(for Heat Pump

model only)

Temperature

3°C lowerthan set temp.

3°C higherthan set temp.

Heat Pump Model

COOL,DRY, – 15 minutesin advance

HEAT, AUTO– 30 minutesin advance

Cooling Model

COOL,DRY, – 15 minutesAUTO in advance

← 1 hour →

31


Pre-season Inspection Is the discharged air cold/warm?

Operation is normal if 15 minutes after the start ofoperation, the difference between the air intake andoutlet vents temperature is:-

Are the air intake or outlet vents of the indoor oroutdoor units obstructed?

Are the remote control batteries weak?If the remote control display appears weak, replacethe batteries.

When the Air Conditioner is Not Usedfor an Extended Period of Time1 To dry the internal parts of the indoor unit, operate

the unit for 2 - 3 hours using:-

2 Turn off the power supply and unplug.Note: If the unit is not switched off by the remotecontrol, it will start operating when you plug in(because the unit is equipped with Auto RestartControl).

3 Remove the remote control batteries.

Recommended Inspection• After used over several seasons, the unit will

become dirty and thus decreases the unit’sperformance. Depending on the operationconditions, a dirty unit may produce odour and dustmay pollute dehumidification system. Therefore, aseasonal inspection is recommended in addition toregular cleaning. (Consult an authorized dealer).

CARE AND MAINTENANCE Cleaning the Indoor Unit and Remote

Control• Wipe gently with a soft, dry cloth.• Do not use water hotter than 40˚C or polishing fluid

to clean the unit.

Cleaning the Air Filter(Recommendation:- If the unit is operated in a dustyenvironment, clean the filters every two weeks,continuous use of this dirty filters will reduce coolingor heating efficiency)

1 Remove dirt using a vacuum cleaner.

2 Wash back of the air filter with water.

3 If badly soiled, wash it with soap or a mild householddetergent.

4 Let it dry and reinstall it.Be sure the “FRONT” mark is facing you.* Damaged air filter.

Consult the nearest authorized dealer.Part No.: CWD001049.

• Do not use benzene, thinner, scouring powder orclothes soaked in caustic chemical to clean the unit.

Cleaning the Front Panel(Must be removed before washing)

1 Raise the front panel higher than the horizontal andpull to remove it.

2 Gently wash with water and a sponge.• Do not press the front panel too hard when washing.• When use kitchen cleaning fluid (neutral detergent),

rinse throughly.• Do not dry the front panel under direct sunlight.

3 To fix the front panel, raise the front panelhorizontally, match the protruding portion on theindoor unit to the fulcrum and push into place.

Air Purifying Filters

Solar Refreshing Deodorizing Filter• Used to remove unpleasant odour and deodorize

the air in the room.• Reusable.• Vacuum, place under direct sunlight for 6 hours and

fit it back in place.(Recommended : every 6 months)

Catechin Air Purifying Filter• The filter is coated with catechin to prevent growth

of bacteria and viruses.• Reusable.• Vacuum and fit it back in place

(Recommended : every 6 months)

• Recommended to change these filters every 3 years.Do not reuse damaged filters.Consult the nearest authorized dealer to purchase anew filter.Catechin Air Purifying Filter No.: CZ-SF70PSolar Refreshing Deodorizing Filter No.: CZ-SFD70P

• If you operate the air conditioner with dirty filters:-– Air is not purified– Cooling capacity decreases– Foul odour is emitted

Heat Pump Model

COOL – 8°C or aboveHEAT – 14°C or above

Cooling Model

COOL – 8°C or above

Heat Pump Model

COOL operation with 30°Cset temperature

Cooling Model

FAN operation

Fulcrum

Protruding portion on indoor unit

2 Remove the air filters

1Raise thefront panel

Catechin AirPurifying Filter

Solar RefreshingDeodorizing Filter

HELPFUL INFORMATION

Auto Operation Button

Automatic Operation• If the remote control fails to function or has been

misplaced, press the Auto Operation button to startthe Automatic operation.

• The Automatic operation will be activatedimmediately once the Auto operation button ispressed. However, temperature cannot be adjustedin this operation.

• The power indicator on the indoor unit will blink untilthe operation mode is selected automatically.

• To cancel this operation, press once more.

Remote Control Signal Receiving Sound• To switch off the beep (Signal Receiving Sound),

press the Auto Operation button for 10 secondscontinuously or longer.“Beep”, “beep” sound will be heard at the tenthseconds.Note: “Beep” sound will be heard at the fifth

seconds;However please press continuously until youheard “beep”, “beep” sound.

• Repeat the above steps if you want to switch on theSignal Receiving Sound.

(This is for Servicing purposes only.)Note: If you press this button continuously for 5 to 10seconds, Test Run operation will be performed.A “beep” sound will be heard at the fifth secondsindicating the Test Run starts to operate.

POWERFULPOWERFULECONOMYECONOMY POWERPOWER TIMERTIMERSLEEPSLEEPPOWERFULPOWERFULECONOMYECONOMY POWERPOWER TIMERTIMERSLEEPSLEEP

Auto Restart Control• If power is resumed after a power failure, the

operation will restart automatically after 3 - 5 1/2minutes.

• Operation will be restarted automatically under theprevious operation mode and airflow direction whenpower is resumed as the operation is not stoppedby the remote control.

Timer Setting• When power failure occurs, the timer setting will be

cancelled. Once power is resumed, reset the timer.

Thunder and Lightning• This air conditioner is equipped with a built-in surge

protective device. However, in order to furtherprotect your air conditioner from being damaged byabnormally strong lightning activity, you may switchoff the main power supply and unplug from powersocket.

ENERGY SAVING AND OPERATIONHINTS

Setting the Temperature• Approximately 10% of electricity can be saved.• Set the temperature higher or lower than the

desired temperature.

Cooling Model

Cooling Operation : 1°C higher

Heat Pump Model

Cooling Operation : 1°C higherHeating Operation : 2°C lower

Air Filters and Air Purifying Filters• Clean the air filters every 2 weeks and the Air

Purifying Filters every 6 months.• Dirty filters may reduces cooling or heating

efficiency.

Keep All Doors and Windows Closed• Otherwise, cooling or heating performance will be

reduced and electricity cost is wasted.

Outdoor Unit• Do not block the air outlet vents. Otherwise, it will

lower the cooling or heating performance.

Timer and Sleep Mode• To prevent wastage of electricity, use sleep mode

when sleeping or Timer when going out.

Avoid Direct Sunlight• Keep curtains or drapes closed to avoid direct

sunlight during cooling operation.

• Raise the front panel and press.

32


TROUBLESHOOTING

Normal Operation

Is it okay?

• Air conditioner has been restarted, but does notoperate for 3 minutes.

• A sound like water flowing can be heard.

• It seems that fog is coming out from the airconditioner.

• The room has a peculiar odour.

• During Automatic Fan Speed setting,indoor fan stops occasionally.

• The outdoor unit emits water or steam.

• (For Heat Pump Model only)Operation stops for about 12 minutes duringheating (The power indicator blinks).

• (For Heat Pump Model only)During heating operation, indoor fan mayrun at on and off conditions.

Abnormal Operation

Is it okay?

• The air conditioner does not operate.

• Air conditioner produces loud noise duringoperation.

• The air conditioner does not cool or warmeffectively.

This is the answer

• This is to protect the air conditioner. Wait until the airconditioner begins to operate.

• This is the sound of refrigerant flowing inside the airconditioner.

• Condensation occurs when the airflow from the airconditioner cools the room.

• This may be a damp smell emitted by the wall,carpet, furniture or clothing in the room.

• This is to remove smell emitted by the surroundings.

• In COOL/DRY operation, moisture in the aircondenses into water on the cool surface of outdoorunit piping that causes dripping.

• This is to melt the frost which has accumulated onthe outdoor unit (defrosting operating). This will takeno longer than about 12 minutes. Water drips fromthe outdoor unit. Wait until this operation ends. (thepower indicator will light up).(Frost will accumulates on the outdoor unit when theoutdoor temperature is low and humidity is high.)

• This is to prevent undesired cooling effect duringheating operation.

Please check

• Has the circuit breaker been tripped?• Has the power plug been removed from the wall

outlet?• Is the timer being used correctly?

• Is the installation work slanted?• Is the front grille closed properly?

• Has the temperature been set incorrectly?• Are the filters dirty?• Are the intake or outlet vents of the outdoor unit

obstructed?• Are all windows and doors closed?

Call the Dealer Immediately

If the following conditions occur, turn off and unplug themain power supply, and then call the dealer immediately.

• Abnormal noise is heard during operation.

• Water or foreign material gets into the remotecontrol by mistake.

• Water leak from the indoor unit.

• Switches or buttons do not operate properly.

• The circuit breaker switches off frequently.

• Power supply cord and plug become unusuallywarm.

33


10 Installation InstructionsRequired tools for Installation Works

1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench

18 N.m (1.8 kgf.m)55 N.m (5.5 kgf.m)65 N.m (6.5 kgf.m)

3. Electric drill, hole core drill(ø70 mm)

7. Reamer 11. Thermometer 15. Vacuum pump

4. Hexagonal wrench (4 mm) 8. Knife 12. Megameter 16. Gauge manifold

10.1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before installation.

• Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuitfor the model to be installed.

• The caution items stated here must be followed because these important contents are related to safety. The meaning of eachindication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and theseriousness is classified by the following indications.

This indication shows the possibility of causing death or serious injury.

This indication shows the possibility of causing injury or damage to properties only.

The items to be followed are classified by the symbols:

Symbol with background white denotes item that is PROHIBITED from doing.

• Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care andmaintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or

electrical shock.4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly

done, the set will drop and cause injury.5. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and single

outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.6. Use the specified cable (2.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no

external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will

cause heat-up at connection point of terminal, fire or electrical shock.8. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle.

Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.

9. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.

10. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet withother electrical appliances. Otherwise, it will cause fire or electrical shock.

34


1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.

2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates atsurrounding of the unit, it may cause fire.

3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage thefurniture.

1. Selection of the installation location.Select a installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

2. Power supply connection to the room air conditioner.Connect the power supply cord of the room air conditioner to the mains using one of the following method.Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.In some countries, permanent connection of this room air conditioner to the power supply is prohibited. 1. Power supply connection to the receptacle using a power plug.

Use an approved 16A power plug with earth pin for 2.0HP (C18BK, A18BK, V18BK, W18BK) and 20A for 2.5HP (C24BK, A24BK,XC24BK, V24BK, W24BK) for the connection to the receptacle.

2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker 2.0HP (C18BK,A18BK, V18BK, W18BK) and 20A for 2.5HP (C24BK, A24BK, XC24BK, V24BK, W24BK) for the permanent connection. It must be adouble pole switch with a minimum 3 mm contact gap.

3. Do not release refrigerant.Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts. Take care of theliquid refrigerant, it may cause frostbite.

4. Installation work.It may need two people to carry out the installation work.

5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

35


Applicable piping kit

CZ-4F5, 7, 10AN (C18BK, A18BK, V18BK, W18BK)

CZ-52F5, 7, 10AN (C24BK, A24BK, XC24BK, V24BK, W24BK)

SELECT THE BEST LOCATION

INDOOR UNIT

• There should not be any heat source or steam near theunit.

• There should not be any obstacles blocking the aircirculation.

• A place where air circulation in the room is good.

• A place where drainage can be easily done.

• A place where noise prevention is taken intoconsideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from the wall,ceiling, fence or other obstacles.

• Recommended installation height for indoor unit shall beat least 2.3 m.

OUTDOOR UNIT

• If an awning is built over the unit to prevent directsunlight or rain, be careful that heat radiation from thecondenser is not obstructed.

• There should not be any animal or plant which could beaffected by hot air discharged.

• Keep the spaces indicated by arrows from wall, ceiling,fence or other obstacles.

• Do not place any obstacles which may cause a shortcircuit of the discharged air.

• If piping length is over 7.5m, additional refrigerantshould be added as shown in the table.

Piping size RatedLength

(m)

Max.Elevation

(m)

Max.PipingLength

(m)

AdditionalRefrigerant

(g/m)Model Gas Liquid

C18BK,V18BK

1/2” 1/4” 5 20 25 20

C24BK,V24BK,XC24BK

5/8” 1/4” 5 20 25 30

A18BK,W18BK

1/2” 1/4” 5 20 25 20

A24BK,W24BK

5/8” 1/4” 5 20 25 30

Example: For A24BK

If the unit will be installed at a 10m distance, the quantity ofadditional refrigerant should be 75g...(10 - 7.5)m × 30g/m = 75g

Indoor/Outdoor Unit Installation Diagram

• This illustration is for explanation purposes only.The indoor unit will actually face a different way.

Attached accessories

36


10.2.1. SELECT THE BEST LOCATION(Refer to “Select the best location”section)

10.2.2. HOW TO FIX INSTALLATIONPLATE

The mounting wall is strong and solid enough to prevent it fromthe vibration.

The centre of installation plate should be at more than 550 mmat right and left of the wall.

The distance from installation plate edge to ceiling should morethan 67 mm.

From installation plate left edge to unit’s left side is 47 mm.

From installation plate right edge to unit’s right is 73 mm.

:

:

:

For left side piping, piping connection for liquid should beabout 126 mm from this line.For left side piping, piping connection for gas should beabout 174 mm from this line.For left side piping, piping connecting cable should beabout 984 mm from this line.

1. Mount the installation plate on the wall with 5 screws ormore.(If mounting the unit on the concrete wall consider usinganchor bolts.)

• Always mount the installation plate horizontally byaligning the marking-off line with the thread and using alevel gauge.

2. Drill the piping plate hole with ø70 mm hole-core drill.

• Line according to the arrows marked on the lower leftand right side of the installation plate. The meeting pointof the extended line is the centre of the hole. Anothermethod is by putting measuring tape at position asshown in the diagram above. The hole centre isobtained by measuring the distance namely 150 mmand 125 mm for left and right hole respectively.

• Drill the piping hole at either the right or the left and thehole should be slightly slanted to the outdoor side.

10.2.3. TO DRILL A HOLE IN THE WALLAND INSTALL A SLEEVE OFPIPING

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

3. Cut the sleeve until it extrudes about 15 mm from the wall.

CautionWhen the wall is hollow, please be sure to use thesleeve for tube ass’y to prevent dangers caused bymice biting the connecting cable.

4. Finish by sealing the sleeve with putty or caulkingcompound at the final stage.

10.2.4. INDOOR UNIT INSTALLATION

1. For the right rear piping

2. For the right and right bottom piping

10.2. INDOOR UNIT

37


3. For the embedded piping

(This can be used for left rear piping & left bottom piping also.)

38


10.2.5. CONNECT THE CABLE TO THEINDOOR UNIT

1. The inside and outside connecting cable can be connectedwithout removing the front grille.

2. Connecting cable between indoor unit and outdoor unitshall be approved polychloroprene sheathed 3 (C18BK,C24BK, XC24BK, V18BK, V24BK) or 5 (A18BK, A24BK,W18BK, W24BK) × 2.5 mm2 flexible cord, type designation245 IEC 57 or heavier cord.

• Ensure the color of wires of outdoor unit and theterminal Nos. are the same to the indoor’s respectively.

• Earth lead wire shall be longer than the other lead wiresas shown in the figure for the electrical safety in case ofthe slipping out of the cord from the anchorage.

• Secure the cable onto the control board with the holder(clamper).

INSTALLATION OF AIR PURIFYING FILTERS

1. Open the front panel.

2. Remove the air filters.

3. Put air purifying filters (left) and solar refreshing deodorizingfilter (right) into place as shown in illustration below.

39


HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille ifnecessary such as when servicing.

1. Set the vertical airflow direction louver to the horizontalposition.

2. Slide down the three caps on the front grille as shown in theillustration below, and then remove the three mountingscrews.

3. Pull the lower section of the front grille towards you toremove the front grille.

When reinstalling the front grille, first set the verticalairflow direction louver to the horizontal position andthen carry out above steps 2 - 3 in the reverse order.

AUTO SWITCH OPERATION

The below operations will be performed by pressing the“AUTO” switch.

1. AUTO OPERATION MODE

The Auto operation will be activated immediately once theAuto Switch is pressed.

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICINGPURPOSE)

The Test Run operation will be activated if the Auto Switchis pressed continuously for more than 5 sec. to below 10sec.. A “pep” sound will occur at the fifth sec., in order toidentify the starting of Test Run operation

3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote Controller receiving sound can bechange over by pressing the “AUTO” Switch continuouslyfor 10 sec. and above. A “pep”, “pep” sound will occur at thetenth sec., in order to indicate the “ON/OFF” change over ofremote control receiving sound.

10.3. OUTDOOR UNIT

10.3.1. SELECT THE BEST LOCATION(Refer to “Select the best location”section)

10.3.2. INSTALL THE OUTDOOR UNIT

• After selecting the best location, start installation accordingto Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontallyby bolt nut. (ø10 mm).

2. When installing at roof, please consider strong wind andearthquake. Please fasten the installation stand firmly withbolt or nails.

10.3.3. CONNECTING THE PIPING

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portionof tube assembly) onto the copper pipe. (In case of using longpiping)

Connect the piping

• Align the center of piping and sufficiently tighten the flarenut with fingers.

• Further tighten the flare nut with torque wrench in specifiedtorque as stated in the table.

MODEL Piping size (Torque)Gas Liquid

C18BK, A18BKV18BK, W18BK

1/2” (55 N.m) 1/4” (18 N.m)

C24BK, A24BK, XC24BK,V24BK, W24BK

5/8” (65 N.m) 1/4” (18 N.m)

Connecting The Piping To Outdoor Unit

Decide piping length and then cut by using pipe cutter. Removeburrs from cut edge. Make flare after inserting the flare nut(located at valve) onto the copper pipe.

Align center of piping to valves and then tighten with torquewrench to the specified torque as stated in the table.

40


CUTTING AND FLARING THE PIPING

1. Please cut using pipe cutter and then remove the burrs.

2. Remove the burrs by using reamer. If burrs is notremoved, gas leakage may be caused.

Turn the piping end down to avoid the metal powderentering the pipe.

3. Please make flare after inserting the flare nut onto thecopper pipes.

10.3.4. (a) EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION)

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in thefollowing procedure.

1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.

• Be sure to connect the end of the charging hose with the push pin to the service port.

2. Connect the center hose of the charging set to a vacuum pump.

3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

4. Close the valve of both the Low and High sides of the charging set and turn off the vacuum pump. Make sure that the needlein the gauge does not move after approximately five minutes.

Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.

6. Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.

7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonalwrench (4 mm).

8. Mount valve caps onto the 2-way valve and the 3-way valve.

• Be sure to check for gas leakage.

CAUTION • If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:

• If the leak stops when the piping connections are tightened further, continue working from step 3.

• If the leak does not stop when the connections are retightened, repair the location of leak.

• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may causefrostbite.

41


1) Checking a gas leakage.

1. Remove the service-port cap from the 3-way valves.

2. Connect the Manifold gauge set to the service port ofLiquid side 3-way valve.

3. Connect the Charging Cylinder to the Manifold gaugeset and open the valve of the Cylinder.

4. Open the low pressure side valve of the Manifold gaugefor approx. 10 seconds and then close.

5. Check gas-leakage of the connecting portion of pipingswith the gas-leak detector.

2) Air purging

The air remaining in the Refrigeration cycle which containsmoisture may cause malfunction on the Compressor.

1. To purge the air, push the pin on the Gas side 3-wayvalve for three seconds with a Hexagonal wrench andset it free for one minute.

• Repeat this for three times.

2. To balance the refrigerant, close the low pressure sidevalve on the Manifold gauge and release refrigerantfrom the piping through service port until the gaugeindicates 0.5 - 0.3 MPa.

3. Set both 3-way valves to open position with theHexagonal wrench for the unit operation.

10.3.5. (b) AIR PURGING OF THE PIPING AND INDOOR UNIT

<For the left pipings>.

1) Measure the pressure.2) Keep it for 5-10 minutes

• Ensure if the pressure indicated on the gauge is as same as that of measured at first time

10.3.6. CONNECT THE CABLE TO THE OUTDOOR UNIT

1. Remove the control board cover from the unit by loosening the screw.

2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 (C18BK, C24BK,XC24BK, V18BK, V24BK) or 5 (A18BK, A24BK, W18BK, W24BK) × 2.5 mm2 flexible cord, type designation 245 IEC 57 orheavier cord.

3. Secure the cable onto the control board with the holder (clamper).

4. Attach the control board cover back to the original position with the screw.

42


10.3.7. PIPE INSULATION

1. Please carry out insulation at pipe connection portion asmentioned in Indoor/Outdoor Unit Installation Diagram.Please wrap the insulated piping end to prevent water fromgoing inside the piping.

2. If drain hose or connecting piping is in the room (where dewmay form), please increase the insulation by using POLY-EFOAM with thickness 6 mm or above.

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

• If a drain elbow is used, the unit should be placed on astand which is taller than 3 cm.

• If the unit is used in an area where temperature falls below0°C for 2 or 3 days in succession, it is recommended not touse a drain elbow, for the drain water freezes and the fanwill not rotate.

CHECK THE DRAINAGE

• Open front panel and remove air filters.(Drainage checking can be carried out without removing thefront grille.)

• Pour a glass of water into the drain tray-styrofoam.

• Ensure that water flows out from drain hose of the indoorunit.

EVALUATION OF THE PERFORMANCE

• Operate the unit at cooling operation mode for fifteenminutes or more.

• Measure the temperature of the intake and discharge air.

• Ensure the difference between the intake temperature andthe discharge is more than 8°C.

NOTE:These equipment shall be connected to a suitable mains networkwith a main impedance less than the following:CS / CU-C18BKP5: 0.20 ΩCS / CU-A18BKP5: 0.20 ΩCS / CU-C24BKP5: 0.12 ΩCS / CU-A24BKP5: 0.14 Ω

CHECK ITEMS

Is there any gas leakage at flare nut connections?

Has the heat insulation been carried out at flare nutconnection?

Is the connecting cable being fixed to terminal board firmly?

Is the connecting cable being clamped firmly?

Is the drainage OK?(Refer to “Check the drainage” section)

Is the earth wire connection properly done?

Is the indoor unit properly hooked to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the cooling operation normal?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

Is the air purifying filter installed?

43


11 3-way Valve3-way Valve (Liquid Side) 3-way Valve (Gas Side)

Works Shaft Position Service Port Shaft Position Service Port

Shipping Closed Closed Closed Close(With valve cap) (With cap) (With valve cap) (With cap)

(Installation and Closed Open Closed OpenRe-installation) (Clockwise) (Connected manifold (Clockwise) (Push-pin)

gauge w/charging cylinder)

Operation Open Closed Open Closed(With valve cap) (With cap) (With valve cap) (With cap)

Pumping down Closed Closed Open Open(Transferring) (Clockwise) (With cap) (Counter-Clockwise) (Connected manifold

gauge)

Evacuation Open Open Open Open(Servicing) (Counter-clockwise) (Connected manifold

gauge)(Counter-clockwise) (Connected manifold

gauge)

Gas charging Open Open Open Open(Servicing) (Counter-clockwise) (Connected manifold


gauge)

Pressure check Open Closed Open Open(Servicing) (Counter-clockwise) (With cap) (Counter-clockwise) (Connected manifold

gauge)

Gas releasing Open Open Open Open(Servicing) (Counter-clockwise) (Connected manifold


gauge)

44


11.1.1. Evacuation of the Installation

Required tools: Hexagonal wrench, adjustable wrench,torque wrenches, wrench to hold thejoints, gas leak detector, and chargingset.

1. Connect a charging hose with a push pin to the Lowand High sides of a charging set and the service portsof a 3-way valves.

• Be sure to connect the end of the charging hose with thepush pin to the service port.

2. Connect the centre hose of the charging set to avacuum pump.

3. Turn on the power switch of the vacuum pump andmake sure that the needle in the gauge moves from 0cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuatethe air for approximately 10 minutes.

4. Close the valve of both the Low adn High sides of thecharging set and turn off the vacuum pump. Make surethat the needle in the gauge does not move afterapproximately 5 minutes.

BE SURE TO TAKE THIS PROCEDURE IN ORDER TOAVOID REFRIGERANT GAS LEAKAGE.

The air in the indoor unit and in the piping must be purged. If airremains in the refrigeration pipings, it will affect thecompressor, reduce the cooling capacity, and could lead to amalfunction.

5. Disconnect the charging hose from the vacuum pumpand from the service ports of the 3-way valves.

6. Tighten the service port caps of both the 3-way valvesat a torque of 18 N.m with a torque wrench.

7. Remove the valve caps of both the 3-way valves.Position both of the valves to “open” using a hexagonalwrench (4 mm).

8. Mount the valve caps onto both of the 3-way valves.


CautionIf gauge needle does not move from 0 cmHg (0 MPa)to -76 cmHg (-0.1 MPa) in step (3) above, take thefollowing measures:

If the leaks stop when the piping connections aretightened further, continue working from step (3).

If the leaks do not stop when the connections areretightened, repair the location of the leak.

11.1. Evacuation of the Equipment (For Europe & Oceania Destination)

When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure.

Service port capBe sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage fromthe refrigeration cycle.

Procedure:

45


11.1.2. Pumping down

1. Confirm that both the 3-way valves are set to the openposition.

• Remove the valve stem caps and confirm that the valvestems are in the open position.

• Be sure to use a hexagonal wrench to operate the valvestems.

2. Operate the unit for 10 to 15 minutes.

3. Stop operation and wait for 3 minutes, then connect thecharge set to the service port of the 3-way valve.

• Connect the charge hose with the push pin to the Gasside service port.

4. Air purging of the charge hose.

• Open the low-pressure valve on the charge set slightlyto purge air from the charge hose.

5. Set the Liquid side 3-way valve to the close position.

6. Operate the air conditioner at the cooling cycle andstop it when the gauge indicates 0 kg/cm2G (0 MPa).

• If the unit cannot be operated at the cool condition(weather is rather cool), press the Pump Down Switchon the Indoor unit.

• So that the unit can be operated.

7. Immediately set the gas side 3-way valve to the closeposition.

• Do this quickly so that the gauge ends up indicating 1 to3 kg/cm2G (0.1 MPa to 0.3 MPa)

8. Use refrigerant reclaiming equipment to collectrefrigerant from indoor unit and pipes.

9. Disconnect the charge set, and mount both the 3-wayvalve’s stem nuts and the service port caps.

• Use a torque wrench to tighten the service port cap to atorque of 18 N.m.


10. Disconnect pipes from indoor unit and outdoor unit.

Procedure:

46


11.1.3. Evacuation of Re-installation

WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TOEVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPESin the following procedure.

1. Connect a charging hose with a push pin to the Lowand High sides of a charging set and the service port ofthe 3-way valve.

• Be sure to connect the end of the charging hose with thepush pin to the service port.

2. Connect the centre hose of the charging set to avacuum pump.

3. Turn on the power switch of the vacuum pump andmake sure that the needle in the gauge moves from 0cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuatethe air for approximately 10 minutes.

4. Close the valve of both Low side and High side of thecharging set and turn off the vacuum pump. Make surethat the needle in the gauge does not move afterapproximately 5 minutes.

BE SURE TO TAKE THIS PROCEDURE IN ORDER TOAVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from the vacuum pump.

6. Charge the pipes and indoor unit with gas refrigerantfrom liquid (High) side 3-way valve service port andthen discharge the refrigerant until gas side (Low) sidegauge needle indicates 3 kg/cm2 (0.3 MPa).

If air remains in the indoor unit and refrigeration pipes, it willaffect the compressor, reduce to cooling capacity, and couldlead to a malfunction.

• BE SURE TO USE REFRIGERANT RECLAIMINGEQUIPMENT WHILE DISCHARGING THEREFRIGERANT.

• Purge the air from charge set’s centre hose.


CautionIf gauge needle does not move from 0 cmHg (0 MPa) to-76 cmHg (-0.1 MPa) in step (3) above, take thefollowing measures:

If the leaks stop when the piping connections aretightened further, continue working from step 3.

If the leaks do not stop when the connections areretightened, repair the location of the leak.

7. Tighten the service port caps of both the 3-way valvesat a torque of 18 N.m with a torque wrench.

8. Remove the valve caps of both the 3-way valves.Position both of the valves to “open” using a hexagonalwrench (4 mm).

9. Mount valve caps onto the 3-way valves.

Procedure:

47


(Lack of refrigerant in the refrigeration cycle)

Procedure:

1. Confirm that both the 3-way valves are set to theopened position.

2. Connect the charge set to the 3-way valve’s serviceport.

• Leave the valve on the charge set closed.

• Connect the charge hose with the push-pin to theservice port.

• Confirm whether the pressure indicates more than 0.1MPa (1 kg/cm2G).

3. Connect the charge set’s centre hose to refrigerantreclaiming equipment.

4. Open the valve (Low side) on the charge set and loosenthe hose connected with the Refrigerant ReclaimingEquipment to purge the air from the hose.

5. Turn on refrigerant reclaiming equipment to collect therefrigerant until the needle indicates 0 (no refrigerant isremaining).

11.1.4. Balance refrigerant of the 3-way valves

48


(No refrigerant in the refrigeration cycle)

Procedure:

1. Connect the vacuum pump to the charge set’s centrehose.

2. Turn on the vacuum pump to evacuate the unit.

• Confirm that the gauge needle has moved toward -76cmHg (-0.1 MPa).

• Apply the vacuum for approximately 1 hour (vacuum of4 mmHg or less).

3. Close the valves (Low side and High side) on thecharge set, turn off the vacuum pump, and confirm thatthe gauge needle does not move (approximately 5minutes after the vacuum pump is turned off).

4. Disconnect the charge hose from the vacuum pump.

11.1.5. Evacuation

49


(After Evacuation)

Procedure:

1. Connect the charge hose to the charging cylinder.

• Connect the charge hose which you disconnected fromthe vacuum pump to the valve at the bottom of thecylinder.

2. Purge the air from the charge hose.

• Open the valve at the bottom of the cylinder and use ascrewdriver to press the check valve on the charge setto purge the air (be careful of the liquid refrigerant).

3. Open the High side on the charge set and charge therefrigerant to the unit.

• Be sure to open only the High side valve on the chargeset to charge the system from the liquid-side (high-pressure) pipe. (If the system cannot be charged withthe specified amount of refrigerant, operate thecompressor until the specified amount can be charged,and then close the valve at the bottom of the chargecylinder.)

4. Immediately disconnect the charge hoses from both 3-way valve service ports.

5. Mount the valve stem nuts and the service port capsonto the 3-way valves.

• Use torque wrench to tighten the service port caps to atorque of 18 N.m.


11.1.6. Gas charging

50


Required tools: Hexagonal wrench, adjustable wrench,torque wrenches, wrench to hold thejoints, gas leak detector, and chargingset.

1. Recheck the piping connections.

2. Open the valve caps and service port caps for both3-way valves.

3. Connect the charging cylinder to the manifold gauge asshown above.

4. Open the valve of the low pressure side of manifoldgauge counterclockwise for 10 seconds, and then closeit.

5. Check for gas leakage.

• Check the flare connections for gas leakage.

6. Purge the air from the system.

• Open the Low pressure side valve of the manifoldgauge.

• Press the service port pin with the hexagonal wrench topurge the air for three seconds and then wait for oneminute.Repeat this three times or more.

7. Balance the refrigerant in the pipings and the indoorunit.

• Close the Low pressure side valve of the manifoldgauge.

• Press the service port pin with the hexagonal wrench torelease the refrigerant until the gauge indicates 0.1 to0.3 MPa.

The air in the indoor unit and in the piping must be purged. If airremains in the refrigeration pipes, it will affect the compressor,reduce the cooling capacity, and could lead to a malfunction.

8. Use torque wrench to tighten the service port cap to atorque of 18 N.m.

9. Set the both 3-way valves to the open position.

10. Mount the valve caps to the 3-way valves.


• At this time, especially check for gas leakage from theboth 3-way valve’s caps, and from the service port caps.

CautionIf gas leakage is discovered in step (3) above, takethe following measures:

a. Re-tighten the connecting portion with torquewrenches.

If the leakage ceases, continue the works fromstep (4).

b. Locate and repair the leak. (Gas leak detector)

Repeat the works from step (1).

11.2. Air Purging of the Piping and Indoor Unit

11.2.1. Air purging

Service port capBe sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage fromthe refrigeration cycle.

Procedure:

51



• Remove the valve caps and confirm that the valve capsare in the raised position.

• Be sure to use a hexagonal wrench to operate the valvestems.

2. Operate the unit for 10 to 15 minutes.

3. Stop operation and wait for 3 minutes, then connect themanifold gauge to the service port of the 3-way valve asshown above.

• Connect the manifold gauge to the gas side serviceport.

4. Air purging of the charge hose.

• Open the Low pressure side valve of manifold gaugeslightly to purge air from the charge hose.

5. Set the liquid side (High side) 3-way valve to the closeposition.

6. Operate the air conditioner at the cooling cycle andstop it when the gauge indicates 0.1 MPa.

• If the unit cannot be operated at the cooling (weather israther cool), press the Pump Down switch on the Indoorunit.

• So that the unit can be operated.

7. Immediately set the gas side (Low side) 3-way valve tothe close position.

• Do this quickly so that the gauge ends up indicating 0.10.3 MPa.

8. Disconnect the manifold gauge, and mount both the3-way valve’s caps and the service port caps.

• Use torque wrench to tighten the service port nut to atorque of 18 N.m.


11.2.2. Pumping down

Procedure:

52


11.2.3. Re-air purging

1. Remove the cap nut from 3-way valves.

• Remove the cap nut from 3-way valves after carefullychecked whether the piping connection was properlyand certainly done.

2. Confirm that valve in both 3-way valves are set to theCLOSE.

3. Connect the gas cylinder to the liquid-side (high-pressure) 3-way valve and the charge set to the gasside (low-pressure) 3-way valve.

• Remove the flare nut from the service ports to connectthe manifold gauge and gas cylinder.

• Close the valves on the gas cylinder and manifoldgauge.

4. Air purging.

• Open the valve on the gas cylinder.

• Open the valve on the manifold gauge, discharge forthree seconds and wait for one minute. Repeat thisthree times.


• Check the flare connections for gas leakage.

6. Discharge the refrigerant.

• Close the valve on the gas cylinder and discharge therefrigerant until the gauge indicates 0.1 to 0.3 MPa.

7. Disconnect the manifold gauge and gas cylinder.

8. Mount the valve caps and the service port caps onto the3-way valves.

• Be sure to use a torque wrench to tighten the serviceport nut.


(Re-installation)

Procedure:

53



2. Connect the manifold gauge to the gas side (Low side)3-way valve’s port.

• Leave the valve on the manifold gauge closed.

• Connect the manifold gauge to the service port.

3. Open the valves (Low side) on the manifold gauge anddischarge the refrigerant until the gauge indicates 0.1MPa .

• If there is no air in the refrigeration cycle [the pressurewhen the air conditioner is not running is higher than 0.1MPa]. If this is the case, it will not be necessary to applya evacuation.

• Discharge the refrigerant gradually; if it is dischargedtoo suddenly, the refrigeration oil will also bedischarged.

11.2.4. Balance refrigerant of the 3-way valves

Procedure:

54


(No refrigerant in the refrigeration cycle)

1. Connect the vacuum pump to the manifold gauge’scentre hose.

2. Evacuation for approximately one hour.

• Confirm that the gauge needle has moved toward -0.01MPa.

3. Close the valve (Low side) on the manifold gauge, turnoff the vacuum pump, and confirm that the gaugeneedle does not move (approximately 5 minutes afterturning off the vacuum pump).

4. Disconnect the manifold gauge from the vacuum pump.

• Vacuum pump oil.

If the vacuum pump oil becomes dirty or depleted,replenish as needed.

11.2.5. Evacuation

Procedure:

55


11.2.6. Gas charging

1. Connect the charge hose to the gas charging cylinder.

• Connect the charge hose which you disconnected fromthe vacuum pump to the valve at the bottom of thecylinder.

2. Purge the air from the charge hose.

• Open the valve at the bottom of the cylinder and pressthe check valve on the charge set to purge the air. (Becareful of the liquid refrigerant). The procedure is thesame if using a gas cylinder.

3. Open the valve (Low side) on the charge set and chargethe system with liquid refrigerant.

• If the system cannot be charged with the specifiedamount of refrigerant, it can be charged with a little at atime (approximately 150g each time) while operating theair conditioner in the cooling cycle; however, one time isnot sufficient, wait approximately 1 minute and thenrepeat the procedure. (pumping down-pin)

4. Immediately disconnect the charge hose from the3-way valve’s service port.

• Stopping partway will allow the refrigerant to bedischarged.

• If the system has been charged with liquid refrigerantwhile operating the air conditioner, turn off the airconditioner before disconnecting the hose.

5. Mount the valve caps and the service port caps.

• Use a torque wrench to tighten the service port nut.


(After Evacuation)

Procedure:

56


1. The Electronic Controller, a Signal Receiver and anIndicator (Fig. 3) can be seen by the below steps:

• Open the Intake Grille and remove the screw at the frontof the Front Grille. (Fig. 1).

• Remove the 3 caps and 3 screws at the bottom of theFront Grille. (Fig. 1)

• Remove the Front Grille by releasing the 3 hooks at thetop of the Front Grille. (Fig. 1)

• Unhook the tabs at the Control Board to remove theControl Board Cover. (Fig. 2)

2. To remove the Electronic Controllers:

• Release the 2 Particular Piece. (Fig. 3)

• Release the CN-REC/DISP connectors. (Fig. 4)

• Release the CN-TH connector. (Fig. 4)

• Release the CN-MAIN connector. (Fig. 4)

• Release the CN-001 connector. (Fig. 4)

• Release the CN-002 connector. (Fig. 4)

• Release the CN-STM1 connector. (Fig. 4)

• Release the CN-STM2 connector. (Fig. 4)

• Release the hooks that hold the Electronic Controller.(Fig. 3)

Fig. 1

Fig. 2

Fig. 3

Fig. 4

12 Servicing Information12.1. Indoor Electronic Controllers Removal Procedures

57


1. In order to remove the Cross Flow Fan and Indoor FanMotor, Control Board need to be taken out by releasing allthe connectors as indicated below.

a. Release the Earth Wire screw. (Fig. 5)

b. Release the Intake Air Sensor. (Fig. 5)

c. Release the Piping Sensor. (Fig. 5)

d. Release the CN-REC/DISP connectors. (Fig. 5)

e. Release the CN-STM1 connector. (Fig. 5)

2. Pull out the Drain Hose from outlet to remove the DischargeGrille. (Fig. 6)

3. Removing the right and left screws. (Fig. 7)

4. By pressing down the hook at the left and pushing up thehook at the right, you will be able to remove the ControlBoard. (Fig. 7)

5. Remove the screw at the Cross Flow Fan. (Fig. 8)

Fig. 5

Fig. 6

Fig. 7

Fig. 8

12.2. Cross Flow Fan and Indoor Fan Motor Removal Procedures

58


6. Remove the Bearing. (Fig. 9)

7. Remove the screws at the left of the Evaporator. (Fig. 9)

8. Push up the Evaporator and pull out the Cross Flow Fanfrom shaft. By then, Fan Motor can be taken out. (Fig. 10).

REMINDER - To reinstall the Fan Motor, put it back inplace, adjust the position of the Fan Motor’s leadwireappropriately as shown in the Fig. 8 0before installing theCross Flow Fan.

Fig. 9

Fig. 10

59


• Remote Control Reset

When the batteries are inserted for the first time, or thebatteries are replaced, all the indications will blink and theremote control might not work.

If this happen, remove the cover of the remote control andyou will find a resetting terminal, and by shorting it with aminus screwdriver, it will return to normal.

• Changing the wireless remote control transmissioncode

When two indoor units are installed in the same room, inorder to prevent operating errors caused by using tworemote controls, cut a jumper wire at the remote controlprinted circuit board (J - A) and cut a jumper wire at theindoor printed circuit board (JX4). It is possible to selectfrom 4 types of transmission codes including one at time ofdelivery condition (0).

60


13.1. Refrigeration cycle systemIn order to diagnose malfunctions, make sure that there are noelectrical problems before inspecting the refrigeration cycle.Such problems include insufficient insulation, problem with thepower source, malfunction of a compressor and a fan.

The normal outlet air temperature and pressure of therefrigeration cycle depends on various conditions, the standardvalues for them are shown in the table on the right.

13 Troubleshooting Guide

61


13.1.1. Relationship between the condition of the air conditioner and pressure andelectric current

Cooling ModeCondition of the air

conditoner Low Pressure High Pressure Electric current during operation

Insufficient refrigerant (gasleakage)

Clogged capillary tube orStrainer

Short circuit in the indoor unit

Heat radiation deficiency ofthe outdoor unit

Inefficient compression

• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

13.1.2. Diagnosis methods of a malfunction of a compressor

Nature of fault Symptom

• Electric current during operation becomes approximately 20% lower than the normal value.

Insufficient compressing of a compressor • The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).

• The difference between high pressure and low pressure becomes almost zero.

• Electric current reaches a high level abnormally, and the value exceeds the limit of anammeter. In some cases, a breaker turns off.

Locked compressor • The compressor has a humming sound.

62


14 Technical Data

240V Outdoor Temp. (°C)Indoor wetbulb temp.

30 35 40 46TC SHC IP TC SHC IP TC SHC IP TC SHC IP

17.0°C 5.26 3.99 1.66 4.91 3.82 1.78 4.57 3.67 1.91 4.16 3.49 2.0619.0°C 5.30 1.8119.5°C 5.77 4.17 1.69 5.40 4.01 1.82 5.02 3.86 1.94 4.56 3.67 2.1022.0°C 6.29 4.33 1.72 5.88 4.16 1.85 5.47 4.01 1.98 4.97 3.83 2.13



17.0°C 5.26 3.99 1.61 4.91 3.82 1.73 4.57 3.67 1.86 4.16 3.49 2.0019.0°C 5.30 1.7619.5°C 5.77 4.17 1.64 5.40 4.01 1.77 5.02 3.86 1.89 4.56 3.67 2.0422.0°C 6.29 4.33 1.67 5.88 4.16 1.80 5.47 4.01 1.92 4.97 3.83 2.08



17.0°C 5.26 3.99 1.58 4.91 3.82 1.69 4.57 3.67 1.81 4.16 3.49 1.9619.0°C 5.30 1.7219.5°C 5.77 4.17 1.60 5.40 4.01 1.73 5.02 3.86 1.85 4.56 3.67 1.9922.0°C 6.29 4.33 1.63 5.88 4.16 1.76 5.47 4.01 1.88 4.97 3.83 2.03

63




17.0°C 6.80 5.15 2.42 6.35 4.94 2.60 5.90 4.75 2.78 5.37 4.51 3.0019.0°C 6.85 2.6419.5°C 7.46 5.39 2.46 6.97 5.18 2.65 6.49 4.99 2.84 5.90 4.75 3.0622.0°C 8.13 5.59 2.51 7.60 5.38 2.70 7.07 5.19 2.89 6.43 4.95 3.11



17.0°C 6.97 5.29 2.38 6.52 5.07 2.56 6.06 4.87 2.74 5.51 4.63 2.9619.0°C 7.03 2.6019.5°C 7.66 5.54 2.43 7.16 5.32 2.61 6.66 5.12 2.79 6.05 4.87 3.0122.0°C 8.34 5.74 2.47 7.80 5.52 2.66 7.25 5.33 2.84 6.59 5.08 3.07



17.0°C 6.97 5.29 2.21 6.52 5.07 2.37 6.06 4.87 2.54 5.51 4.63 2.7419.0°C 7.03 2.4119.5°C 7.66 5.54 2.25 7.16 5.32 2.42 6.66 5.12 2.59 6.05 4.87 2.7922.0°C 8.34 5.74 2.29 7.80 5.52 2.46 7.25 5.33 2.63 6.59 5.08 2.84

TC - Total Cooling Capacity (kW) Indoor 27°C/19°CSHC - Sensible Heat Capacity (kW) Outdoor 35°C/24°CIP - Input Power (kW)

64


65


15 Exploded View

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

66


16 Replacement Parts List<Model: CS-C18BK / CS-C24BK>

REF. NO. PART NAME & DESCRIPTION QTY. CS-C18BK CS-C24BK REMARKS

1 CHASSY COMPLETE 1 (1)(2)(3)(4)(5)(6)(7)

CWD50C1178CWD50C1178CWD50C1178CWD50C1178CWD50C1212CWD50C1212CWD50C1178

←←←←←←

CWD50C1212

2 FAN MOTOR 1 CWA981056 ← 0

3 CROSS FLOW FAN COMPLETE 1 CWH02C1010 ←4 SCREW - CROSS FLOW FAN 1 CWH4580304 ←5 BEARING ASS’Y 1 CWH64K007 ←6 EVAPORATOR 1 CWB30C1125 CWB30C1129

7 FLARE NUT 1 CWH6002140 (1/4”) ←8 FLARE NUT 1 CWT25007 (1/2”) CWT25004 (5/8”)

9 INTAKE AIR SENSOR HOLDER 1 CWH32142 ←10 DISCHARGE GRILLE COMPLETE 1 (1)

(2)(3)(4)(5)(6)(7)

CWE20C2102CWE20C2102CWE20C2102CWE20C2102CWE20C2131CWE20C2131CWE20C2102

←←←←←←←

11 VERTICAL VANE 16 CWE241088 ←12 CONNECTING BAR 1 CWE261025 ←13 AIR SWING MOTOR 1 CWA98260 ← 0

14 AIR SWING MOTOR 1 CWA981041 ← 0

15 LEAD WIRE - AIR SWING MOTOR 1 CWA67C3731 ←16 HORIZONTAL VANE 1 CWE241072 ←17 CAP - DRAIN TRAY 1 CWH52C1001 ←18 PARTICULAR PIECE 1 CWD932162 ←19 CONTROL BOARD 1 (1)

(2)(3)(4)(5)(6)(7)

CWH102103CWH102103CWH102103ACWH102103CWH102103BCWH102103BCWH102103

←←←←←←

CWH102103B

20 TERMINAL BOARD COMPLETE 1 CWA28C2064 CWA28C2065 0

21 POWER SUPPLY CORD 1 (1)(2)(3)(4)(5)(6)(7)

CWA20C2163CWA20C2163CWA20C2163CWA20C2215CWA20C2210CWA20C2210CWA20C2163


22 ELECTRONIC CONTROLLER - MAIN 1 CWA742662 CWA742497 0

23 ELECTRONIC CONTROLLER - POWER 1 CWA742616 ← 0

24 LEAD WIRE - FAN MOTOR 1 CWA67C3732 CWA67C3733

25 P.C.B. RECEIVER 1 CWA73C1124 ←26 ELECTRONIC CONTROLLER - INDICATOR 1 CWE39C1046 ← 0

27 LEAD WIRE - INDICATOR 1 CWA67C3724 ←28 INDICATOR HOLDER 1 CWD932163 ←29 SENSOR COMPLETE 1 (1)

(2)(3)(4)(5)(6)(7)


←←←←←←←

0

30 CONTROL BOARD TOP COVER 1 CWH131091 ←31 CONTROL BOARD FRONT COVER 1 CWH131090 ←32 REMOTE CONTROL COMPLETE 1 (1)

(2)(3)(4)(5)(6)(7)


←←←←←←←

0

33 FRONT GRILLE COMPLETE 1 (1)(2)(3)(4)(5)(6)(7)

CWE11C2330CWE11C2330CWE11C2330CWE11C2330CWE11C2471CWE11C2471CWE11C2330

←←←←←←←

34 INTAKE GRILLE 1 CWE221037 ←

67


REF. NO. PART NAME & DESCRIPTION QTY. CS-C18BK CS-C24BK REMARKS

35 GRILLE DOOR 1 (1)(2)(3)(4)(5)(6)(7)

CWE141033CWE141033CWE141033CWE141033CWE141047CWE141047CWE141033

←←←←←←←

36 CONTROL PANEL 1 CWE312114 ←37 DECORATION BASE (R) 1 CWE351067 ←38 DECORATION BASE (L) 1 CWE351068 ←39 AIR FILTER 2 CWD001049 ←40 SCREW - FRONT GRILLE 3 XTT4+16C ←41 CAP - FRONT GRILLE 3 CWH521062 ←42 DRAIN HOSE 1 CWH85287 ←43 AIR PURIFYING FILTER 1 CWMD00C0001 ← 0

44 SOLAR DEODORIZING FILTER 1 CWMD00C0002 ← 0

45 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C067 ←46 INSTALLATION PLATE 1 CWH36K1007 ←

(Note)

• All parts are supplied from MACC, Malaysia (Vendor Code: 086).

• “O” marked parts are recommended to be kept in stock.

• (1) — CS-C18BKP, CS-C24BKP (Europe).

• (2) — CS-C18BKP-1, CS-C24BKP-1 (Panama).

• (3) — CS-C18BKP-2, CS-C24BKP-2 (Oceania).

• (4) — CS-C18BKP-3, CS-C18BKP-3 (Argentina).

• (5) — CS-C18BKP-4, CS-C18BKP-4 (USA).

• (6) — CS-C18BKP-5, CS-C24BKP-5 (Canada).

• (7) — CS-C18BKP-6, CS-C24BKP-6 (Turkey).

68


17 Exploded View

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

69


18 Replacement Parts List<Model: CU-C18BK / CU-C24BK>

REF. NO. PART NAME & DESCRIPTION QTY. CU-C18BK CU-C24BK REMARKS

1 CHASSY ASS’Y 1 (1)(2)(3)(4)(5)(6)(7)

CWD50K514BCWD50K515BCWD50K514BCWD50K514BCWD50K2056BCWD50K2056BCWD50K514B

←CWD50K514B

←CWD50K514BCWD50K2057BCWD50K2057B

←2 SOUND PROOF BOARD 1 (1)

(2)(3)(4)(5)(6)(7)

CWH15223CWH15223CWH15223CWH15223CWH15223ACWH15223ACWH15223

←←←←←←←

3 FAN MOTOR BRACKET 1 CWD54238 CWD54237

4 SCREW - FAN MOTOR BRACKET 4 CWH55027 ←5 FAN MOTOR 1 (1)

(2)(3)(4)(5)(6)(7)

CWA921077CWA951132CWA921077CWA921077CWA951132CWA951132CWA921077

CWA921078CWA921079CWA921078CWA921078CWA921079CWA921079CWA921078

0

6 SCREW - FAN MOTOR MOUNT 4 CWH55252 ←7 PROPELLER FAN ASS’Y 1 CWH00K1001 ←8 NUT - PROPELLER FAN 1 CWH56060 ←9 COMPRESSOR 1 (1)

(2)(3)(4)(5)(6)(7)

2JS318D3CB022K25S236F6A2JS318D3CB022JS318D3CB022K25S236F6A2K25S236F6A2JS318D3CB02

2JS438D3GA022J39S236A1A2JS438D3GA022JS438D3GA022J39S236A1A2J39S236A1A2JS438D3GA02

0

10 PACKING 1 CWB81047 ←11 ANTI - VIBRATION BUSHING 3 CWH50055 ←12 NUT - COMPRESSOR MOUNT 3 CWH4582065 ←13 SOUND PROOF MATERIAL 1 (1)

(2)(3)(4)(5)(6)(7)

-CWG30894--CWG30894CWG30894-

←←←←←←←

14 CONDENSER 1 (1)(2)(3)(4)(5)(6)(7)

CWB32C287RCWB32C1175CWB32C287RCWB32C287RCWB32C1154RCWB32C1154RCWB32C287R

CWB32C1155RCWB32C352

CWB32C1155RCWB32C1155RCWB32C286RCWB32C286RCWB32C1155R

15 HOLDER COUPLING ASS’Y 1 CWH35K029B CWH35K030B

16 3-WAY VALVE (LIQUID) 1 CWB01464 ← 0

17 3-WAY VALVE (GAS) 1 CWB01364 CWB01430 0

18 TUBE ASS’Y (CAPILLARY TUBE & STRAINER) 1 (1)(2)(3)(4)(5)(6)(7)

CWT02533CWT02669CWT02533CWT02533CWT02669CWT02669CWT02533

CWT022501CWT022502CWT022501CWT022501CWT022502CWT022502CWT022501

19 TERMINAL COVER 1 (1)(2)(3)(4)(5)(6)(7)

CWH171012CWH171011CWH171012CWH171012CWH171011CWH171011CWH171012

←CWH171012

←←

CWH171012CWH171012

←20 NUT - TERMINAL COVER 1 CWH7080300 ←21 CONTROL BOARD 1 (1)

(2)(3)(4)(5)(6)(7)

CWH10K1019CWH10K1019CWH10K1019CWH10K1019CWH10K1019CWH10K1019CWH10K1019

←CWH10K331CWH10K1020

←CWH10K331CWH10K331

←

70



22 CAPACITOR - FAN MOTOR 1 (1)(2)(3)(4)(5)(6)(7)

F0GAH355A002F0GAH305A002F0GAH355A002F0GAH355A002F0GAH305A002F0GAH305A002F0GAH355A002

←CWA312095

←←

CWA312095CWA312095

←

0

23 CAPACITOR - COMPRESSOR 1 (1)(2)(3)(4)(5)(6)(7)

DS371456CPNADS371406CPNADS371456CPNADS371456CPNACWA312078CWA312078DS371456CPNA

←DS371606CPNA

←←

CWA312088CWA312088

←

0

24 CAPACITOR COMPLETE 1 - CWA31C1005

25 HOLDER CAPACITOR 1 (1)(2)(3)(4)(5)(6)(7)

CWH30060CWH30060CWH30060CWH30060CWH30060CWH30060CWH30060

←CWH30071CWH301015

←CWH30071CWH30071

←26 THERMOSTAT 1 CWA15129 ←27 TERMINAL BOARD ASS’Y 1 (1)

(2)(3)(4)(5)(6)(7)

CWA28K217CWA28K217CWA28K217CWA28K217CWA28K217CWA28K217CWA28K217

←CWA28C381

←←

CWA28C381CWA28C381

←28 FUSE 1 XBA2C31TRO ←29 HOLDER - SENSOR 1 CWH32002 ←31 CABINET FRONT PLATE 1 (1)

(2)(3)(4)(5)(6)(7)

CWE06K034BCWE06K034BCWE06K034BCWE06K034BCWE06K1037BCWE06K1037BCWE06K034B

←←←←←←←

32 CABINET REAR PLATE 1 (1)(2)(3)(4)(5)(6)(7)

CWE02096BCWE02096BCWE02096BCWE02096BCWE021015BCWE021015BCWE02096B

←←←←←←←

33 CABINET FRONT PLATE 1 (1)(2)(3)(4)(5)(6)(7)


←←←←←←←

34 CABINET SIDE PLATE 1 (1)(2)(3)(4)(5)(6)(7)


←←←←←←←

35 CABINET TOP PLATE 1 (1)(2)(3)(4)(5)(6)(7)


←←←←←←←

36 CONTROL BOARD COVER 1 (1)(2)(3)(4)(5)(6)(7)

CWH13336ACWH13331ACWH13331ACWH13336ACWH131115ACWH131115ACWH13336A

←←

CWH13336A←←←←

37 HANDLE 2 CWE16000E ←38 OPERATION INSTRUCTIONS 1 (1)

(2)(3)(4)(5)(6)(7)

CWF563300CWF563393CWF563412CWF563413CWF563385CWF563301CWF563431

←←←←←←←

71



39 INSTALLATION INSTRUCTIONS (ENGLISH, FRANCAIS,ESPANOL & DEUTSCH)

1 (1)(2)(3)(4)(5)(6)(7)

CWF612190CWF612190CWF612190CWF612190CWF612225CWF612225CWF612190

←←←←←←←

40 INSTALLATION INSTRUCTIONS (ITALIANO,NEDERLANDS, PORTUGUES & GREEK)

1 (1)(2)(3)(4)(5)(6)(7)

CWF612222------

←------

41 INSTALLATION INSTRUCTIONS (RUSSIA) 1 (1)(2)(3)(4)(5)(6)(7)

CWF612223------

←------

42 PARTICULATE PLATE 1 (1)(2)(3)(4)(5)(6)(7)

CWD90830CWD90830CWD90830CWD90830CWD90830CWD90830CWD90830

←←←←←

CWD90C113←

(Note)

• All parts are supplied from MACC, Malaysia (Vendor Code: 086).

• “O” marked parts are recommended to be kept in stock.

• (1) — CU-C18BKP5, CU-C24BKP5 (Europe).

• (2) — CU-C18BKP6-1, CU-C24BKP6-1 (Panama).

• (3) — CU-C18BKP5-2, CU-C24BKP5-2 (Oceania).

• (4) — CU-C18BKP5-3, CU-C24BKP5-3 (Argentina).

• (5) — CU-C18BKP6-4, CU-C24BKP6-4 (USA).

• (6) — CU-C18BKP6-5, CU-C24BKP6-5 (Canada).

• (7) — CU-C18BKP5-6, CU-C24BKP5-6 (Turkey).

72


19 Electronic Circuit Diagram

SCHEMATIC DIAGRAM 1/3

• CS-C18BK / CU-C18BK• CS-C24BK / CU-C24BK

1

2

1

2

TEMPERATUREFUSE

TO OUTDOOR

POWER SUPPLY

TEST

WHT AC01(WHT)

BLK AC02(BLK)

1

2

3

4

WHT AC03(WHT)

C130.01µ

R5810k

C220.01µ

R6810k

R59 1k

RECEIVER

1

3

(KR-3)

INDICATOR

PH302C

330

0.01µ

0.01µFO

VCC2

OUT

VCC1

GND

CO

IN-

IN+

47µ6.3V

–+

137k5

6

7

8

4

3

2

1

CN-RCV

2

(PH)

CN-DISP

6

5

4

3

2

1

2

CN-DISP

3

4

5

6

7

8

9

10

7 1

D101

D102D103

D104

D105

1 2

Auto

(KR-10)

R54 1k

R4810k

BZ01

BZ

e

c

b

Q001R551k

1

2

3

4

5

6

7

9

8 26

25

24

23

22

21

20

CN-STM112345

12345 (ZH5)

VERTICAL

IC05A52A20030R

R08 R028

43 /2W 43 /2W

RY-PWR

R0624k

RY-PWR

ELECTRONIC CONTROL UNIT

YELLOW

C

H L

YELLOW

YE

LLO

W

OV

ER

LOA

DP

RO

TE

CTO

R(C

18B

KP

onl

y)

BLU

E

BLU

E

BLU

EC

APA

CIT

OR

OR

AN

GE

BR

OW

Nor

YE

LLO

WT

HE

RM

OS

TAT

BLUE

COMPRESSOR

RED

RE

DMOTOR

FUSET 3. 15A L 250V

CAPACITOR

73



R11 1k

C010.01µ

R3410k

R12 1k R35 5.1k

C020.01µ

R20

R21

R22

R23

R24

R25

D07

D08

D09

D10

D11

D12

R18

R19

D05

D06

P72

P73

P74

P75

P64

P65

P66

P67

P40

/A00

P41

/A01

P42

/A02

P43

/A03

P44

/A04

P45

/A05

P46

/A06

P47

/A07

P50/A8

P51/A9RY-PWR DRIVE SIGNAL

P52/A10

P53/A11

P54/A12

P55/A13

P56/A14

P57/A15

Vss

VDD

P30

P31

P32

P33

P34

P35

P11

/AN

1

P12

/AN

2

P13

/AN

3

P14

/AN

4

P15

/AN

5

P16

/AN

6

P17

/AN

7

Avs

s

VC

C

P25

P24

P23

P22

/SC

X

P21

/S0

P20

/S1

P36

46

41

42

43

44

45

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

48

47

40

39

38

37

36

35

34

33

32313029282726252423222120191817

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1P71

P70

P03/NTP3

P02/NTP2

P01/NTP1

P00/NTP0

Vcc

X1

X2

IC

XT1

XT2

AVref

P10/ANO

Reset

AVd0

1

2

3

4

5

6

7

9

8 26

25

24

23

22

21

20

CN-STM212345

12345 (ZH5)

HORIZONTAL

R09 10k

IC02

5

6

8

3

1RS

D6

D1

R/B

CS

SK 4

VccGND 27

A52BR9020F

JX2

R5720k

C050.1µ

+C030.01µ1.6V

R17 430

R16 620

R15 620

R14 620

R13 430

R10 10k

AIR TEMP. SENSOR

(15k 3950)(20k 3950)

PIPE TEMP. SENSOR

(PH) CN-TH4 3 2 1

C040.1µ

R3020k

C080.1µ

R3315k

+ C071.00µ16V

C280.01µ

R32150k

4.096 MHz(47pF X 2)

+

R49100k

C212.2µ50V

C120.01µ

IC04A52PST600DR

R311k

R561k

CN-MAIN7654321

R47510

C230.1µ

R085.1k

R01100

C180.022µ

R07 20k

R29 1k

C061000p

(MB)

R4220k

+C1747µ25V

C140.1µ

+C20100µ16V

C110.01µ

R3710k

R3839k

JX1

RX1

C150.01µ

R4010k

R4124k

R43 1k

JX3

JX4

R02 20k

R03 100

IC01A52D0022GB15

X01

STEPPINGMOTORDRIVESIGNAL

BUZZER

AUTO OPERATIONTEST RUNREMOTE CONTROLSOUND

TIMER SHORTEN

POWER CLOCK INPUT

REMOTE-CONTROLCOMMAND INPUT

AUTO RESTART GROUND

POWER

RESET

PIPE TEMP

INTAKE AIR TEMP

DISPLAY

OSC

REMOTE CONTROL NO.

SHORT

SHORT

OPEN

SHORT

SHORT

OPEN

OPEN

OPEN

1

0

3

2

JX3 JX4 RX1

10K

10K

STEPPINGMOTOR DRIVESIGNAL

74



CN001

3

4

5

6

7

8

9

10

11

1

2

F001

Z001 C002

L001 C003

C004

C005

D007 R030 R046

CN002

7

6

5

4

3

2

1

DB004

TH001 TH002

R114PC001

1 4

32

R002 ZD005

R116PC002

4 1

23

R001

R118

R117

c

b

eQ102

R115

R007

R006

D002

D003

R005

R004

R008

R003

PC0031 4

32

PC004

feedback

1 4

32

+ZD001 C066 R011

R010

R009

PC0054 1

23

c

e

b

Q001

10k

4.7k

R028

R029b

c

e

R113

PC0064 1

23

R112

L002

R032 R055

R054R024

C014 C017

R023 R053 R033

R034

IC001

C016 C015

Q005

R052

R051

R050

R048

e

b

c

+ C007

c

b

e

R013

R031

R016

Q004 C012

R014

ZD002

ZD003

C009 C010

C011

R057

Q003

R012 C018C008

R017

S

D

G

R027

R026

R020

R025

R019

D045

R015

+

D006

D014

D013

Q006

c

b

e

ZD006 ZD007

R048 R047

R018

R021ZD004

C103

D101

R105

ZD101

T025

4

9

8

7

6

10

2

3

1 +

C105+

C016

L101

5VI O

IC101

FAN MOTOR

ELECTRONIC CONTROL UNIT

(XH7-5)

CN101

5

4

3

2

1

(PH)

CN103

7

6

5

4

3

2

1

(PH)

75


How to use electronic circuit diagram

TIMER TABLE

Test ModeName Time (When test point Remarks

Short-circuited)Sleep Mode Waiting 1 hr. 6 sec.Sleep Mode Operation 8 hrs. 48 sec.Real Timer 1 hr. 1 min.

10 min. 10 sec.1 min. 1 sec.

Time Delay Safety Control 2 min. 58 sec. 0 sec.Forced Operation 60 sec. 0 sec.Time Save Control 7 min. 42 sec.Anti-Freezing 4 min. 0 sec.Auto Mode Judgement 20 sec. 0 sec.Soft Dry OFF 6 min. 36 sec.

ON 10 min. 60 sec. Soft Dry: 10 min. operation

Deodorizing Control

Cooling 40 sec. 4 sec.70 sec. 7 sec.20 sec. 2 sec.180 sec. 18 sec.

Soft Dry 40 sec. 4 sec.360 sec. 36 sec.

Comp. Reverse Rotation Detection 5 min. 30 sec. Comp. ON 5 min. and above2 min. 0 sec.

Comp./ Fan Motor Delay Timer 1.6 sec. 0 sec.Powerful Mode Operation 15 min. 15 sec.Random Auto Restart Control 0 ~ 62 sec. 0 ~ 6.2 sec.

76


19.1. REMOTE CONTROL

77


19.2. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT BOARD

TOP VIEW

78


19.3. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT BOARD

BOTTOM VIEW

79


[MACC] Printed in Malaysia

room air conditioner · 2 functions remote control off / on i operation off / on temp. room...

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